Jason Walker

Jason Walker (ジェーソン ウォーカー, Jeeson Wookaa) is a who currently resides in Ikeda, Osaka. Born and raised in U.S.A Jason initially lacked knowledge about the hollow activity in Japan. After shifting to Japan temporarily, in order to study their culture, Jason became so intrigued by the spiritual disturbances taking place in Karakura town due to Shinigami, hollows and other full-bringers that he married a Japanese woman just to get the green card and permanently shifted to Japan. Although, he did later on divorce the woman and began pursuing a life of adventure with his powers. During one of his investigations, he heard rumors about a secret society that deals with Hollows. Soon, he moved out of and started living in  to further his investigation/studies regarding this mysterious organization.

Appearance
Jason was initially a slim young man of above average height with rather messy black hair, which almost reaches down to his shoulders, along with some strands pointing upwards on top of his head and a prominent tuft obscuring most of his forehead. His hair is later brushed downwards, covering most of his face in the process and are rarely seen covering up his right eye. Jason somewhat resembles his biological father in terms of his appearance although, he seems to have inherited his mother's eyes. He has bright blue, somewhat intriguing eyes that captures the soul of any person who understands beauty.

Jason has apparently been described often as "ruggedly handsome," an attribute that several ladies have fallen for. Contrary to that statement, younger women find him cute and charming. He is also apparently often included in the annual list America's Top Ten Most Handsome Bachelors. Jason has "great skin" and never suffered from zits (so far) or any sort of skin type infections. His skin color has been said to "light" rather than "pale" or "dark brown"; which is highly unlikely for a Caucasian male. However, it being (in all probability) a trait he inherited from both of his parents; with both being fair. While, his hair and slacker like personality makes him seem lazy and untidy, he takes a great care of his appearance. Aged 17, Jason became taller than his adoptive father, Grant Walker and also by that time, he showed a somewhat muscular disposition.

Jason's attire varies depending on what he feels like wearing. Although, he is seen donning glasses and claims that they are his reading glasses, it has been confirmed he sees just fine without them. In fact, the glasses just make him look attractive. Also, because of the fact that his biological father was murdered with a knife, he is hardly seen carrying swords or bladed weaponry. Instead, he is often seen with a pair of nunchakus or his signature eskrima sticks. His most common attire consists of a formal half sleeved shirt, a black hoodie like cardigan and denim pants. This attire is complemented by either loafers or a pair of sneakers. After moving in Japan, he started sporting a scarf and stopped wearing glasses. Also, his hoodie was soon replaced by a black, long trench coat.

Jason apparently has trouble trusting people and this may explain why he carries both of his pistols with him, all the time. His twin pistols consist of a and a, respectively and the later comes with a laser sight or sometimes a mini torch. Back at his secret underground base, he owns several weapons (most of them being either stolen or found in dumpster and repaired). He occasionally equips himself with these weapons, if necessary. He owns impressive weapons like M4 carbine, M2010 Enhanced Sniper Rifle, Benelli M4, electric knuckles, mini-EMP device, metal wires, shurikens, smoke pellets, poison-coated darts, M84 stun grenade, M203 grenade launcher, modified flame thrower, propane torches and land mines. He also has much more low tech weapons like a short recurve bow with titanium arrow heads.

Its not just his face but the aura around him and his body language that makes him charismatic. He boasts an air of confidence, noted in his tight-lipped smile. His hair is now slightly darker, longer and tidy, befitting somebody of his mindset while his strong jawline assures them of his ability to protect his loved ones and his masculinity. His eyes are a shade of blue with a hint of azure, perhaps acting as a mirror and reflecting one's true self by projecting and mimicking the sky and the ocean into their very souls. His eyes symbolizes serenity and purity. Though, he is often seen with dull black and some time onyx eyes, those are merely the color imparted by his contact lenses. The world needs men like Jason- lean, determined, responsible and honorable, yet capable of hiding secrets behind a silent scowl. Ergo, he is a more than just another man in the human world. Perchance, it is more than what meets the eye. His disposition and stature is of a man who engages in a daily regimen of rigorous exercises (including aerobics, weight lifting, gymnastics, and simulated combat) to keep himself in peak condition. His built is a cross between that of a professional athlete (most like an acrobat/gymnast) and a seasoned combat veteran.

While in Army, Jason wore a standard ACU, which features a digital Universal Camouflage Pattern (UCP) and is designed for use in woodland, desert, and urban environments. It is also said to be fire-proof. Since, the Delta Force has been established to counter terrorism and members (officers) go through CIA-like training in addition to military basics, Jason mostly wore civilian clothing both on and off duty and to further blend in the society, he was allowed to keep long hair as well as a beard. Being a part of a "Black Op" task force, most details of his equipment(s) back then remains unknown. However, he was at least once seen using a IOTV which he was wearing over his ACU and was using a and a  to fight off enemy troops. Currently, he has shown to use a concealed black kevlar body armor which remains hidden under his black trench coat.

Personality
{{Quote3|B|Of course I know better, but there's something about this guy that brings out the ... well, the impulsive in me.|Jason about an Jason was apparently scarred for life, after his parents abandoned him as a four year old. Remembering how his father would abuse his mom and even hit her owning to his drug addiction and alcoholism. After his father was diagnosed with terminal throat cancer and the continuous drinking had trashed his liver. His parents decided it would be best if they leave their only son out of their problems and spare him from their miserable life. This has instilled Jason with the strong believe that, "people are selfish" and has made him unable to trust people who has ever lied to him; regardless of how small the lie is.

As a child, he idolized the principals of his adoptive-father, Grant Walker. Grant Walker was not only a millionaire but was also a brilliant "Lawyer" back in the days, yet, he showed no signs of pride or arrogance. Jason has loved and idolized both of his adoptive parents and has never blamed them for anything. While his adoptive sister initially treated him with extreme prejudice but after witnessing Jason's mild, cultivated and caring demeanor along with his great intellect, she accepted him as his older brother. Jason has always been very perceptive and tactful; carefully calculating the amount of interest and emotions he should invest in one's sentences and if he should at all empathize with them.

It might be because of the fact that, he witnessed poverty and abusive parents (Who later abandoned him), Jason understands pain. He has the ability to empathize with others, strong ability to uphold commitments, well-developed sense of loyalty and desire to protect loved ones, has heightened sense of morality and justice, selfless, strong ability to keep calm in the face of danger. All of these traits along with a strong will was inherited by Jason from his adoptive father. He is mostly mentally stable, although he does have his fair share of negative and positive traits. One of the most interesting, is his desire to put himself in stressful or risky situations in order to gain the pleasure of excitement. This has caused people to label him as a "masochist", while clearly that is not the case. Jason is merely a lost soul who is trying to find the meaning of his life by seeking adventure. He has shown great concern for his new family, when Sarah was kidnapped, even as a 17 year old, he spent nearly a week on streets searching for her and trying to investigate. Two months after her kidnapping, the police declared her to be "presumable dead" or "sold" because of lack of leads on the case, Jason was greatly angered. He stopped eating, studying and barely slept at night for the next two weeks.

His character traits include; extremely high intelligence, ability to identify weaknesses and attributes in others, strong ability to understand and predict the actions of others (and identify the motives for those actions), highly observant and perceptive to detail, extremely self-aware, strong sense of duty, somewhat patient but at the same time, his inability to trust and his life style makes him a loner. Also, Jason is sensitive to any topic that mentions about his birth parents. While it is not clear what happened with him as a child, he does have a second degree burn mark on his shoulder which never truly healed. He is commonly seen as a brave and righteous hero with an indomitable sense of justice and responsibility. He understands every move (good or bad) he makes, has a consequence and he must be held responsible for his actions. Despite this, Jason does have innate understanding of human nature. He is not oblivious to the fact that "humans are weak, manipulative and shrewd".

Jason originally had an impressive charisma and leadership skills. And, his love for his motherland along with his selflessness is what forced him to become a soldier and quit his MBA career. Shaken by his father's tragic and sudden death, Jason became slightly paranoid and grief stricken. After the war, he quit Army and perhaps because of watching so many of his comrades die in-front of his eyes, he was affected by Somatoform disorder, possibly from PTSD. Although, he fully recovered within five months, these chain of events changed him drastically.

His sense of responsibility and his strong moral compass in the face of adversity and sharp wit make him one of the most iconic and enduring heroes. Jason does admit, some part of the "hero" the world admires, has died within him. One of Jason's most prominent traits is his sense of humor. Even at the face of certain death, Jason invariably cracks a joke, to the annoyance of both friends and foes. His reasons for this vary: either he wants to relieve the stress of a situation, or simply because he wants to hide how scared he really is during a crisis. Also, he does this to get on the nerves of his opponents, since he knows that if they are angry, that they would normally lose themselves and be vulnerable to a superior skilled opponent. It is generally agreed, however, that whenever a life is in danger, he will stop telling jokes and take the current situation with the utmost seriousness.

Behind this humorous facade, however, is a wounded soul that has gone through much suffering. While Jason is in combat, occasionally another person dies, leaving him depressed for having failed in his responsibility. This has caused him to lash out and keep himself detached from the society. His new personality traits are much more darker and depressing. One fine example would be him saying, "People don't change! Masks fall off." He likes to solve problems through careful consideration and research. Jason currently prefers to work alone, and have a reputation for being logical and precise. Though no stranger to the use of physical violence, Jason still exemplifies many of the most important cerebral personality traits of a calculating-genius and an introvert. His secret underground hideout is essentially a functional lab, complete with supercomputer that he uses to research problems and come up with solutions. Jason spends a lot of time alone, brooding in his lab. While he’s there, he’s usually creating a plan of action, strategizing his next move. While a great problem solver, trying to detach himself from the society and constantly mask his emotions, he has become incapable of expressing his feelings and emotions. Because he focuses on the details and see what many other styles do not, he is unarguably a good problem solver and very creative.

It must be noted that, Jason did not move into a separate penthouse and started working on a secret hideout until his adoptive became a cripple after a terrible accident and started seeking drugs to relieve her of her pain. While he still cares of her and often visits her, he does not live with her because of the "drug seeking habit" which reminds him of his biological father.

Using his scientific genius to solve problems and invent new tools, Jason is a master when it comes down to research and prep work. He hates anyone or everyone who shows the classic signs of being a "hedonist" and continuously has used his wealth (he inherited his father's wealth) to keep himself well funded. While he rarely shows up during business meetings, he has an iron grip on his company and has managed to push it beyond its own estimated limits. His business management (understanding, calculating, problem solving aspect and not presentation or deals) is so amazing that he turned his million dollar company into a billion dollar company, thereby, becoming a billionaire in the process. While, he does not trust others', he seemingly trusts his child-hood friend and former rival, James to control his company in his absence (which is most of the time). Jason became fascinated and almost infatuated with beings like pluses and hollows. Though, he mentions that he has been able to see them all his life, it was not till he quit the army, he became fascinated with these creatures of the afterlife.

Like any human, he likes to be recognized for his accomplishments, and can tackle projects with creativity and enthusiasm. Yet, Jason is no longer the impulsive type. Preferring to be secretive, rational, controlled and skeptic. Unarguably, all of this points sum up and scream that Jason has a psychological disorder or is mentally unstable, Jason is not self-destructive, also he acknowledges the fact that he has a problem and wishes to take of it. Because of his new found powers and drastically altered persona, he now prefers to "out think/outwit" his opponents rather than simply outfight them. It has been officially accepted that Jason is a victim of abuse who also has suffered from additional traumas like loosing the people he cares about.

Indomitable Will
Jason possesses an unnaturally strong willpower, enabling to recover faster from traumas and mental disorders. He shows way greater resistance for seduction techniques than any human can. He has shown to have a powerful spirit, free of corruption and temptation. He has some regard for morals and ethics. All of the aforementioned traits are a result of the values with which he was raised, thanks to his adoptive parents. While he says, people don't change, but deep down (inside) he believes people can change.

He is willing to do anything for the good of the society even if it costs his own life. Jason's love for humanity and his urge to maintain justice and peace has made him truly incorruptible. His incorruptibility is supported by his "Indomitable Will", Jason's unstoppable determination and strength of will make him an extremely formidable opponent. This makes him able to function while tolerating massive amounts of physical pain, intoxication and also allows him to resist telepathy or mind control.

His indomitable will is what supplies him with the ability to stay true to his heart, to stay true to his optimistic nature which allows him to see all the endless possibilities in the world, no matter how tunneled the world becomes. He is able to emerge from defeat even stronger. His willingness to put his life on line for the greater good and will to never give up is one of the few traits that can influence people to do good.

Equipment
Electric Brass Knuckle: The electric brass knuckle is more or less an average looking brass knuckle but black in color and is obviously made from a different but more resilient material when compared to brass. It can be used much like a normal brass knuckles in combat. These electrified knuckles can deliver 1, 000,000 volts and generates a huge amount of ampere (since, its not the voltage but ampere that kills a person), that is sufficient to an elephant and pierce through materials like reinforced kevlar. These knuckles have microcircuit-conducting filaments capable of high-frequency electrical power from rechargeable power packs in both his glove cuffs and his boots. They have the capacity to discharge for up to five minutes of sustained fire before depleting their power supplies. However, he can lower the voltage and ampere to such levels that the knuckles would only electrocute or stun anyone if they are punched with them (the knuckles). However, the material used in the knuckles are yet to be officially identified.

Jason's Bracelet: Jason owns a bracelet (That allows him to use his fullbring). It is seemingly a normal silver bracelet, given to him by his birth mother. He keeps the bracelet with him 24 X 7.

Personalized by Jason himself, his Eskrima-like sticks are a pair of sleek black stick (Was originally gray in color) in which is made of graphene reinforced with embedded carbon nanotube and is coated with light weight titanium. Since it is made of graphene which has been further reinforced by carbon nanotubes, it is not only amazingly durable but can endure way more stress than any material on the planet. No metal can compete with its toughness and strength. These sticks have a melting point of 6500 k, making it nearly impossible to harm them. His sticks are further painted black by spraying an undisclosed material over it, which has supposedly made them "immune to EMPs", since, Jason upgraded them and made them capable of emitting electricity. Despite its bulky appearance, it is quite light and easy to wield. These iconic sticks are perfect weapon for close quarters combat and Jason uses them to boost is already overwhelming hand to hand combat skills. However, he would use them only if there were more than one person involved in the fight and not in one on one combat unless the assailant was using some sort of bladed weaponry.

The Twins: The twins is an awkward and unconventional name given to the two pistols owned and used by Jason, throughout his life. As mentioned above, his twin pistols consist of a and a, respectively and the later comes with a laser sight or sometimes a mini torch.

Natural Abilities
High Spiritual Energy: Jason has a high amount of spiritual energy. He boasts a great amount of high level of spiritual energy and can exert large amounts of Reiatsu when needed. His reiatsu is black with green outline. Jason's spiritual power has often been compared to that of a hollow. Jason unlike other s is able to conceal his spiritual pressure, making him extremely stealthy. He has amazing control over his spiritual energy and is able use it for offensive purposes in combat.

Spiritual Awareness: He can sense Pluses and Tsukirei in near proximity and is even capable of pinpointing their exact location. His spiritual awareness is enough to allow him to see a. Jason mentions that he has been able to see Hollows and Shinigami's alike from an young age.

Enhanced Speed and Reflexes: Being a former athlete back in his school and a Delta force (Army) member, Jason is extremely light and nimble on his feet. He has shown to be marginally faster than his Army colleagues (one of them was an Olympic silver medalist). The speed at which he reacts allows him to dodge fast-moving projectiles such as arrows and bullets. He can usually out-react even the fastest humans, no matter how well-trained. He can leap large distances and he can dodge point blank projectile fire and has done so many times.

Enhanced Stamina and Endurance: He can exert himself at peak capacity greater then any human could. He can also endure way more physical and mental stress than normal humans. While this is a result of his intense training, it must be noted that without his strong will power none of this would have been possible. He has shown to be capable of holding his breath underwater for exactly 6 minutes and 15 seconds and remain calm even when poisoned.

Enhanced Strength and Durability: He possesses great strength for a 6'0", 155-pound young man who regularly engages in intensive physical exercise. He has been seen bench pressing twice his own weight (310 lbs) and can go toe to toe with any human or even a small group of armed thugs. He has displayed enough strength to throw a full grown 5'10" man several feet away. He has also been seen punching out opponents that are larger than him and that are way more durable. He has been shown to be able to handle the worst hits and impacts without giving out. He can take blows from people stronger than him and still fight, thus proving his durability.

Master Hand-to-Hand Combatant/Martial Artist: He is one of the finest human combatants in Karakura town, his skills honed to such a level even hollows and armed adversaries can be overpowered by him. He is a highly skilled combatant trained by Master Ken and Lei from Japan and China respectively. During his time in Army, he was further trained in military combative although, these skills were rarely seen since as an Army-man he relied more on his marksmanship skills. Although, as a kid he was always more of a brawler but after joining the army, he has shown to be extremely observant and far more skilled than before. He also has been seen training with knives and sticks. He was shown to be skilled in using improvised weapons as well, having used a chair, a broken stick, poker and even broken glass during fights. He is a master of Dragon Kung Fu, Wing Chun, Jujutsu, Boxing, Eskrima and Muay Thai. During his fight with a bank robber who was armed with a gun and was also a black belt in Karate, Jason demonstrated moves like ginga, aú batido, Macaco em pe and the famous Vingativa, which proved that he is somewhat of a skilled Capoeira practitioner. Jason can locate different pressure points on a human's body; incapacitate, paralyze, severely injure, or kill a person though he states, "Its tough to locate pressure points on a hollow or a shinigami but far from impossible".

Skilled Athlete: He has been taught acrobatics and gymnastics routines as a kid. Back in his school, he was the Captain of his basket ball team and in high school became a part of his school's swimming team. In recent years, he has been seen participating in competitive sports like fencing and mountain biking. He has shown himself capable of scaling buildings and running from rooftop to rooftop easily. He is skilled enough to perform a double side flip and then perform a triple back flip off a truck. During fights he used no handed cartwheels and b-twists. He mentions that he still plays basketball since it helps him to maintain his hand-to-eye coordination.

Gifted Tactician/High Intellect: He comes up with excellent strategic plans to expose and defeat his opponent(S), always aiming to "work smarter, not harder." While he is no expert in anything outside his physical skills, he has shown to have extensive knowledge in various fields, including computer engineering, toxicology, combat medicine, weapons and so on, all of which he uses to effectively aid in his investigation while maintaining discretion, often without needing aid from anyone else. He was shown to be a highly skilled tactician and was able to create plans which allow him take on large numbers of heavily armed man, highly skilled martial artists and even people whose skills outweigh his own. He is fluent in several languages having spoken English, Hindi, French, German, Italian, with Russian being his weakest. He has a little knowledge about business management, having learnt basics from his father, who was a businessman and also spent eight months studying MBA after which he left U.S.A. stating that "MBA bores me!" He possesses accomplishments such as a PhD in physics from Harvard University. He can invent various devices with special properties when needed. He has single-handedly incapacitated up to a dozen well-armed and experienced opponents in a single encounter and escaped uninjured. It is his military training and his attention to detail that allows him to achieve this.
 * Military Protocol: He possesses the ability to quickly process multiple information streams (e.g., threat assessment) and rapidly respond to changing tactical situations. He is well-versed in all Armed force disciplines including intelligence gathering, escape arts, demolition, survival tactics, swimming, mountaineering, march or drill skills, map making, map reading, communication systems and vehicles used in armed forces. He also took part in cross-training with the Australian Special Air Service Regiment. He is proficient with many different kinds of explosives. From small entry explosives to grenades and even high powered military grade firepower. Jason's learned to survey his targets before attacking them. He spends long hours scouting targets and confirming if they deserve punishment or need to be killed.

Marksmanship/Firearms/Archery: Even before joining the Army, it was seen that Jason was fairly capable of wielding and very proficient with the use of firearms. After completing his training, he proved himself to be an exceptional marksman of every type of firearm who is sometimes depicted as being ambidextrous in this respect. He is very skilled in sharpshooting (w/sniper riffle) and can easily stalemate with the best marksman in US Army. He is a proficient archer and uses the longbow quite well, he seems to prefer the usage of crossbows. However, his archery skills have never been explored since he relies more on his guns and hand-to-hand combat skills. While, he was never trained in ninjutsu, he continues to use "Stealth-tactics" and shurikens for weaker/inexperienced enemies.

Special Abilities
Because of his mastery of Fullbring, Jason is capable of using Bringer Light. However, his Bringer Light is inferior to most Fullbringers due to his inexperience. Bringer Light allows him to increase his speed and the height of his jumps by pulling on the “soul” of the ground surface or air. Jason is rarely seen using his "Bringer Light" because of the fact that he is hugely depends on the flight (flying ability) granted by his Fullbring.

Fullbring
Black Panther Claw (黒豹爪, Kurohyō Tsume): When activated, Jason's bracelet begins to glow and transforms into two black gauntlets reaching up towards the forearms. The gauntlets/gloves have two sharp spikes extending out, that can either be used to stop bladed weapons or simply stab people. It features a giant metallic "x" on the back of Jason palms, an unique reiatsu surrounds these gauntlets causing them to be ignited with this special reiatsu that is orange (w/black outline) in color, extending all over his body but since they are originated from these gauntlets, the maximum amount of this special spiritual energy is around the gloves. When at its maximum power, the gauntlets would give out a special spark that resembles electric sparks (only black in color) along with the unique reiatsu. Further, a black liquid oozes out and extends to his knees, shin and elbows, which later solidifies to forms guards/pads. These gauntlets grant him the ability to manipulate gravity/gravitons.
 *  Manipulation: The Kurohyō Tsume, grants Jason the ability to exert his gravitational control over a maximum distance of 1 mile (1.6 km) from his body. Thus, the maximum volume of matter he could influence at once is limited. He once exercised this control by lifting into the air an inverted conic frustum-shaped land mass whose uppermost area was 4 miles across, and causing it to fly as though it were a dirigible. He can also erect a gravitational force-field of similar proportions. Gravitons can perform as many as four separate tasks simultaneously. He can use his power at maximum capacity for up to an hour before mental fatigue significantly impairs his performance and his body starts stressing him out. By rapidly projecting gravitons in a cohesive beam, he can generate a force blast with a maximum concussive force equivalent to the primary shock wave of an explosion generated by two thousand pounds of TNT. He possesses the ability to mentally manipulate gravitons (that carry the attractive, gravitational force between atomic nuclei), enabling him to control gravity. He can surround any object or person including himself with gravitons and anti-gravitons (particles similar to gravitons but with opposite charge and spin), thus increasing or decreasing the Earth's pull of gravity upon it.
 * : By decreasing the pull of gravity beneath him, he can fly at any speed or height at which he can still breathe. However by using his force field generation he can also breathe at amazing heights.
 * : He can also create a gravitational force field around him capable of protecting him from concussive forces. It can also allow him to breathe at heights that should kill normal humans.
 *  Spheres: Jason creates a small black sphere from his hands which acts as a center of gravity, it attracts everything in its surroundings to create an enormous mass, resembling the moon but way smaller in size. He can also create several smaller spheres with only enough power to attract several men/woman and pin them to the core of the sphere where they were constantly hit by the smaller stones and pebbles that were being attracted by the spheres. The large the sphere is, the greater concentration and energy Jason has to invest. This often causes a backlash. It causes massive strain on his body and causes the technique to collapse, thereby nullifying the effects.
 * Attraction, Repulsion and Impairment: By increasing the pull of gravity beneath his opponents, he can pin them to the ground, having made them too heavy to move, or cause sufficient gravitational stress to impair the normal functioning of the human cardiovascular system. He can also cause an inanimate object to radiate enough gravitons to give it its own gravitational field, able to attract nearby matter and energy. Using this ability, he can also repulse objects away from him with great force. Depending on the amount of force the user puts into this technique, it can easily shatter wood, bones, metal, or stone walls. By using this technique as a defensive measure, all attacks directed at the user will be deflected, spiritual or physical, no matter the size, nature, power or mass. He can also use this to pull matter towards the user at will. It is possible to attract multiple targets at once, causing them to collide with each other.
 * Immovability: He can become virtually immovable at will as long as he was in contact with the ground. He did this by bonding himself to the earth beneath him by force of will, which in effect created a omni-directional increase of gravity around and specially beneath him him. This gravity field extended about fifty feet in radius from his center of balance. Thus if there were sufficient power to uproot him, it would take the ground beneath his feet in an area corresponding to the radius of the field.

Weaknesses and Limitations

 * Psychological Manipulation: Jason has only weak spot which allows for psychological manipulation, that is, his birth parents.
 * Time Limit: Jason's Fullbring being a clad type, obviously has a time limit. While it is suspected to last over an hour, Jason confirms that his Fullbring cannot last for more than 70 minutes and once it disappears he is forced to wait for nearly 30 minutes before he can use his Fullbring again. The time-limit can be bothersome during an invasion or while fighting an army/swarm of hollows.
 * Inexperience: Due to his relatively short training as a Fullbringer (which was not proper) and having realized his powers in his early 20's, Jason's biggest weakness is his inexperience in being a Hollow slayer/fighter. While with his previous training as a soldier and his inventive mind, he makes up for his weakness, he still is not completely sure what his powers make him capable of and this handicaps his effectiveness because of this.

Trivia

 * Jason was initially unaware of the cold-war between Fullbringer(S) and Shinigami(s), he even teamed up with a Shinigami to defeat a bunch of hollows back in US.
 * Jason's Fullbring, "Black Panther Claw"'s initial design was based on Tsunayoshi Sawada's X-Gloves (Vongola Ring) from the anime/manga series Katekyō Hitman Reborn! However, the powers granted by Panther Claw are inspired from Enma Kozato's abilities.
 * The only reason author switched the name of Jason's Fullbring from "Panther Claw" to "Black Panther Claw" was just to hint that how devastating Jason's Fullbring can be. Specially, if he looses control. Contrary to that, the author comments the only reason for name switch was because he thought the later sounded "cooler".
 * Some of his techniques are based on abilities exclusive to Deva Path utilized by Nagato and later Madara from the famous anime/manga series, "Naruto".
 * His immovability is actually a reference to the famous "Irresistible force paradox", which begs the question, "What happens when an unstoppable force meets an immovable object?"
 * Jason's electric knuckles are based on taser knuckles.
 * While Jason can resist mind control due to his will, this does not mean he is invulnerable to such abilities.