Quote Originally Posted by The Demented One View Post
Once he gives up soulbinding, he loses the vestiges. That easy.
All right, but that was just an extreme example: do you not think it overpowered that the True Genius can gain the whole point of a single class - say, in this case, a binder - without taking any class levels? A 20th level binder is far from weak, and only the tiny minority of it's power comes from class features other than Soulbind.

Not only that, but can the True Genius gain 20th level casting with his ability? Spellcasting is a class feature, and with this he can gain multiple sets of castings a day. For an example, he might start with a Sorcerer, a spontaneous caster, use a variety of useful spells, and then switch to another spontaneous caster such as Beguiler or Warmage, gaining another bunch of spells. Not to mention Favored Soul and Spirit Shaman.