The better man? There is no such thing [base class]

[Grand Arbiter]

Not holding just hoping we can make incarnum/ akasha using monstrosities

I'd imagine if you multiclassed Totemist/Evolutionist it could serve your needs. Rizban's Soul Evolutionist could be an interesting way to cap off such a build.


...If someone wants a big project, they could try to make a 20-level progression version of the PRC. I'd try, but I know next to nothing about incarnum.