Category Points

[Nori]

Is there a way to get more than the 3 category points (besides going cornac)?
I'm curious because I'm thinking of having my arcane blade guy get dirty fighting (two weapons), but would still like to get 5 runes/infusions and unlock the Aegis tree... I could do two weapons but then I lose the very useful stun from two handed weapons, which I could get back by getting dirty fighting... Then of course there is combat veteran, which would be handy too...

[edge2054]

You can get a fourth one from a potion you find mid to late game.