Warning: Border belongs to Wizards of the Coast. The program I made this with is called Magic Set Editor. The picture comes from Matsuricon. My hands are behind my back because they were off at the time.

So, I figure, that since Eldritch is loosely similar to a planeswalker, I would make a card for him.Although... More accuractely, he should've been a spark of electricity.
For those that are going, whuh: A planeswalker is a being in the Magic the Gathering universe, who is born with a 'spark'. This spark is usually dormant until something traumatic happens. Basically this spark allows them to have a near limitless supply to certain types of energy, and to travel between planes, which are basically just other worlds. Either different views of the same world, or another planet entirely.

TL; DR: He can travel between planes, but his body died as his spark awakened, so he's a bodyless planeswalker spark, who goes around, turning creatures into planeswalkers for his own uses, then throws the body away when he's done, so he can go to other planes again.