I think I'm going to be a general debuffer early, and should be able to bring the hammer (via undead) starting at 2nd. I realize the debuffing is going to overlap w/ any DFA out there, but what's better than a creature that has -2 to all his stuff due to being entangled? How about -4 to all his stuff? Also, should work well w/ a glass cannon styled fighter.
Can provide some Kn:Arcana and Spellcraft support, but it won't be as good as on a general Wizard, as normal for Cha-based casters.
Two questions for aftercrescent:
1. Will I be able to enter the Incanatrix PrC and/or Shadow Adept at any point? Metamagic reducers and DC enhancers are awesome.
2. If not, suppose I got into Unseen Seer, then gained sneak attack (via the standard two feat ToB method)... would the sneak attack advancement gained previously apply retroactively to my new sneak attack dice? You guys might be able to see where I'm going w/ this... Quasit familiar + Shivering Touch + Sneak Attack + Assay Spell Resistance = a bajillion dex damage.