Truenamer is hard to use because the DCs to cast spells scale the more you use them each day, you can only have one cast of each spell going at once, and your effects are about as good as spells, so the chance of failure isn't really worth it.
EDIT: All I'm saying is, I did something here I've never seen before anywhere. And I don't even count myself in the top 3 for most inventive. This round is absurdly high-quality.