Originally Posted by NineThePuma
Well, what's the primary stat for the PrC?
None in particular, incarnum mostly need Con and perhaps wis for the save or (cha for soulborn) and the ToB class each have on important mental stat.
But as i said I have other idea, perhaps artificer/bard that create unique magical instrument or warlock/incarnate that infuse his eldtrch blast with essentia. Not sure yet.