Becerro Urquía

Is an arrancar and a former member of Sosuke Aizen's army. Some time after Aizen's defeat, she eventually proceeds to aimlessly wander Hueco Mundo alongside Sumiyoshi Aburaya.

Great Spiritual Power
Becerro possess a surprisingly enormous amount of spiritual power. However, because Becerro has enough control over her spiritual power to avoid exerting any noticeable volume of spiritual pressure, it's rare for anyone to even realize that she has such a reservoir. Even Sosuke Aizen himself was in the dark about her true power.

Master Swordsman
Amongst ALL of the arrancar, Bercerro was the greatest wielder of the sword  in terms of actual skill. So great was her  prowess that Aizen truly considered making her an Espada, but ultimately chose not to do so due to the fact that he was complete unaware of the fact that her spiritual pressure wasn't an accurate indication of her level of spiritual power.

Master of Pesquisa
Bercerro proficiency in the utilization of pesquisa is unsurpassed. Unlike the other arrancar, she has managed to  train herself to the point where she can use pesquisa by naught but instinct alone. As a result,  pesquisa is less of a skill to her and more of sixth sense. Bercerro's WIP....