While some of this is all fine and dandy, the biggest issue is with your spellcasting. Mainly, if someone would already be able to cast 3rd level mind-effecting spells, why would they go into this class, which would require another 5 levels in order to get more of the same thing, when instead 5 levels in the class they already have would translate into 5th or 6th level spells, which are far above and beyond any features this class offers.