Originally Posted by Byzantine
Incarnum is interesting, and no one ever said that you can't cut out the other classes that don't work (even if it only really leaves totemist). Perhaps it would be better if you limit it like this for your world. It gives the urgals a unique culture to bring to the table, a power that no other group is 'primitive' enough to consider.
Seconding the "urgals only" thing for totemists. It gives them a nice touch.
Maybe something similar for other races?