[CORRECTION: The original edition of this article confused John Von Neumann with Werner Von Braun, and very unjustifiably referred to Von Neumann as an “Evil Nazi.” Von Neumann was neither Nazi nor Evil. We hear he was a pretty cool guy, and we wish A Beautiful Mind had been made about him instead. OTI very much regrets the error.]

Great heroes are often defined by their villains. Luke Skywalker had Darth Vader. He-Man had Skeletor. U.S. Grant had Robert E. Lee.

But some heroes aren’t defined by their villains, they’re defined by their shiny, brushable hair, their many collectible colors, or their gracefully molded haunches.

Designing villains for heroes that go around saving planets or slaying dragons is easy — some good ideas might begin with a dragon or something that could destroy a planet, not necessarily in that order.

But in the maddening crush to narrativize, syndicate and cross-market every collectible under creation, every once in a while, somebody, somewhere has to confront the one of the most daunting challenges a character designer can face.

How do you make a villain for a hero who doesn’t do anything? Maybe you start with something like this:

Today, we discuss one of the most compelling answers anyone came up with for that question: The Smooze, the sentient Grey Goo that terrorizes the prancing protagonists of 1986’s My Little Pony: The Movie –