Scar

Scar is an Ishvalan warrior-monk and vigilante who initially sought revenge against State Alchemists for the genocide of his people during the Ishvalan War. His right arm bears a destruction-based alchemical tattoo given to him by his dying brother, allowing him to deconstruct anything he touches. After gaining a reconstruction tattoo on his left arm, he becomes one of the most versatile fighters in the series — evolving from a vengeful killer into a key ally against Father and the Homunculi.