The king of all fire beasts

A powerful magician called Saifgaird, made a deal with a evil genie. That when he died the genie could keep his body and all his magic as long as his brain could live on, in any body the genie chose. Thinking this would keep his power, his mind, he did not expect that the genie would put him in the body of the of the most evil fighter in the world. He is now cursed to rule the land of fire forever.