Thread:DazzlingEmerald/@comment-8914761-20151211145651/@comment-25152698-20151211151203

To begin, he's a Third Generation Dragon Slayer. Which means, he is formerly a First Generation Dragon Slayer. A First Generation Dragon Slayer is a Dragon Slayer who was taught Dragon Slayer Magic by a Dragon. To become a Third Generation Dragon Slayer, that First Generation Dragon Slayer must implant a Lacrima into his body bearing that Dragon Slayer Magic.

Jiretto also has access to a Dual Element Mode. That means he has two elements to his Dragon Slayer Magic. A Dragon Slayer can acquire a Dual Element mode by eating another Dragon Slayer's element or implanting a different elemental type Lacrima into their body. (Jiretto did the latter)

Tried to make this as simple as possible. Hope it helps!