Fire God Slayer Magic

Flame God Slayer Magic is a God Slayer style used by member of the Seven Kin Of Purgatory, Zancrow.

Description
Flame God Slayer Magic incorporates the element of fire into the user's body. This allows the user to produce black flames from any part of their body. The user is also able to consume flames of any sort to replenish his/her strength. Zancrow says that his flames, in addition to being able to burn, are "flare halberds that destroy everything," which implies that his flames have a high amount of destructive ability.

Moves

 * Flame God's Kagutsuchi (炎神のカグツチ Enjin no Kagutsuchi): Zancrow spreads his arms and legs and unleashes a giant ball of black flames around his person. This was first seen against Natsu, and it completely overpowered Natsu's "Brilliant Flame".
 * Flame God's Bellow (炎神の怒号 Enjin no Dogō): A similar attack to Natsu's "Fire Dragon Roar", Zancrow breathes a massive fireball of flame at his opponent. While using this attack, his fire is normal-colored, not black, although this is presumably due to the fact that Zancrow had just consumed Natsu's flames a moment earlier.
 * Flame God's Supper (炎神の晩餐 Enjin no Bansan): An attack where Zancrow claps his hands down to launch a mouth-shaped attack of black flames at his foe(s) to trap them in the black flames to turn them into ashes.
 * Flame God's Punch Attack: An unnamed attack where Zancrow releases a massive stream of black flames at his opponent by launching his arm forward in a punch-like motion. This attack demonstrated that Natsu couldn't eat Zancrow's flames. (Unnamed)
 * Flame God's Scythe Attack: An unnamed attack where Zancrow forms a scythe of black flames off of one arm, which he uses as a weapon for destructive results. This attack was first demonstrated when Zancrow used it to cut down a couple of trees. (Unnamed)