Improved Vigorous RageRage, Con 17, base fortitude save 5+You recover from wounds even faster when in rage. Primeval RageBase attack bonus +3You are vicious, bad tempered, ferocious and dangerous. Quick RageBarbarian Rage,RunYou have learned to increase your movement speed while raging. ...
Ability to increase DCs (Spell Focus Cold, Illumian Race, sooo many others) Ability to modify which ability score is used for spell DCs (There's some feats for this that I can't quite remember) Ability to modify Spell subschools (Archmage/Hierophant - IIRC there's also feats that make ...