This guy is going to be interesting for sure. Crazy powerful and crazy to boot
So he will have to roll the d20 after rolling defense every time, but can choose not to lower an opponent's d20 roll if he doesn't want to, to avoid having to roll the d20 himself for Cosmic Madness.
While squaddies don't have much a chance to hurt him, they will force him to roll for Cosmic Madness. Of course they can die from excess shields from Cosmic Awareness, but if they are cheap enough, it may be worth the risk at some points, especially if he has 3 Insanity Markers already.
Even if he does switch sides at some point, he may have done enough, or more than enough damage already to make it okay, especially if he has 4 or 5 wounds by that point.
Cool stuff Johnny.