XO the Monster

He was created by Cain to be the king of all monsters (which is why he has the mark on his back), but he was proven to be too powerful. However, Cain didn't wanna tell him that, so he was cast aside and was told he was a bastard son. All on his own, XO journeyed across many lands looking for a purpose or someone to aid him, but to no avail. So he became angry in his ways, finding his true power within. He harnessed psychic abilities (which were given to him by Cain) and the power of thunder. As his anger grew and grew, he terrorized small towns and their people. This all came to a jolting stop though when he met Phoenix. She saw the light in him and even "adopted" him. As time went on for them, XO became a bit more calm (he was still an asshole though because he doesn't want people to know that he's soft) and trusted Phoenix with his life.