Alright, I've sort of decided on something. A mostly-insane Sphinx Planeswalker from Esper, who happens to be one of the greatest artificers in the Multiverse. Responsible for the creation of Etherium, an alloy described by other Planeswalkers as "more magic than magic." Wants to go home after losing most of his power in the Mending, thus fucking up the crazy sphinx-riddles he set up for himself and others throughout the Multiverse. Employs really questionable means of achieving this goal.

Sound workable?