Hard agree - Mindmoil is nuts in the right context. Does great things for Zedruu, does great things in my Yidris enchantress Vorthos build (jesus Toc, make the build more obscure, I dare you!).
I'm gonna plug the commanders I've played and recommend Dralnu, Lich Lord as a strong suggestion. Don't be scared off by the first ability, it's not a major.
Zedruu, the Greathearted is a possibility too - tstorm's list here is iconic, fun to play and absolutely nuts.