Destroyed the world after saving it,now I'm the next King of Minotaurs

I descended the heavens, helped saved the world, got betrayed, destroyed the world, was reincarnated by some mysterious being, but without my previous memories. I do have some of my abilities though. I'm also a Minotaur, but like a magician. Weird, I know! Don't worry, I'm a punching minotaur magician. Yep even magicians from the minotaur tribe settle things with their fists.