Villain Exchange Program

Perfect Pony Plot Provider - Uploader of 10+ images with 350 upvotes or more (Questionable/Explicit)

With all the discussion of villain effectiveness in season 3, IDW villain upgrades, and a general desire to revive some of the bigger badasses of Gens 1 and 2, I'm curious what villains from other shows you'd like to see ponified and put into the series. In addition, discuss what direction of lightheartedness or grimdark you would expect from this change.
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