Type of feat: Class (given based on class levels)
Specifics: The barbarian may rage, gaining a +4 magical bonus to strength and constitution and +2 to all will saving throws, in exchange for a -2 penalty to armor class. The barbarian may use this ability once per day at first level, +1 use per day at level 4, and every 4 levels thereafter, extending into epic levels.
At 15th level, the rage ability becomes greater rage, giving the barbarian +6 to strength and constitution and +3 to will saves (the -2 penalty to armor class still applies).
If the Strength is already capped (+12 from Item Bonuses and Magical Effects), Barbarian gets an AB bonus equal to half of Strength bonus given (same for Greater Rage).
Rage lasts the amount of turns equal to the character constitution modifier (pure modifier, bonuses from different sources are not considered).
Epic Rage Feats do not work with this Rage anymore.