So, continuing on from what I mentioned yesterday, I've decided to take a look through the rest of the Rival NPC prebuilds, as well as those for the Grunts, and have discovered a few other units with MP Deficits (only 4 when not counting the Psycho Rival). I've compiled a Google Doc of both my findings, as well as potential spot-fixes for the MP deficits I found, for your review and judgement.