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

[Hanuman]

My evolutionist player is going to love barbs... he already has poison disease soulwounding quills and spines. Really nasty.

Anything for gaining immunity to poisons or diseases? Heroes of horror has a feat to grant immunity to 1 disease and +2 saves vs. all others. I think evolving immunities to biological invasion is pretty in-line with adapting.