RAGE

While the character is not fatigued or exhausted and has at least 1 focus point per level, they can use a swift action to fly into a rage, gaining a bonus to damage rolls, Strength-based ability/skill checks, CMB checks, CMD, Fortitude saves, and Will saves equal to 1/2 level (rounded up) for up to 1 minute. This damage bonus is doubled for two-handed weapons and heavy natural weapons that normally deal x1.5 or x2 Strength bonus to damage.

During this time, at the end of every turn, they gain temporary hit points equal to their level and lose 1 focus point. While raging, they also gain the benefits of any Rage Powers they possess and are unable to concentrate or use any skills (except Acrobatics, Brawn, Climb, Fly, Intimidate, Perception, Survival, and Swim).

They can end this rage early as a free action on their turn but it also ends early if their focus points are reduced to 0. After raging, they become exhausted for a duration equal to however long they were raging and then fatigued for that long after that.

Example:
An 8th level character that enters rage for 6 rounds and then ends it prematurely would spend 3 FP to activate it, get a +4 bonus to damage rolls, Strength-based ability/skill checks, CMB checks, CMD, Fortitude saves, and Will saves for the duration, gain 8 temporary hit points at the end of their turn every round, become exhausted for 6 rounds after their rage ends and then be fatigued for 6 rounds after they lose the exhausted condition. , they then become exhausted for 8 rounds afterwards and then fatigued 8 rounds after that.