Ernest Frankenstein being the Forgotten Frankenstein has always been treated like rubbish eventually he has enough, and seeks revenge his revenge is monstrous only capable of a Madman he strikes a deal with a lovecraftian horror he would be able to enact his revenge for a price his soul when he died would be trapped in an amulet that would shatter if the amulet was to shatter it Ernest would go straight to what he calls Dante's Inferno Version of hell when the deal is sealed he becomes a monster

Also he is asexual, I make the rules