Rage 
Feature 1
Requirements You aren't fatigued or raging.
Grants Effect: Rage
You tap into your inner fury and begin raging. You gain a number of temporary Hit Points equal to your level plus your Constitution modifier. This frenzy lasts for 1 minute, until there are no enemies you can perceive, or until you fall unconscious, whichever comes first. You can't voluntarily stop raging. While you are raging:
- You deal 2 additional damage on melee Strikes. This additional damage is halved if your weapon or unarmed attack is agile.
- You take a -1 penalty to AC.
- You can't use actions with the concentrate trait unless they also have the rage trait. You can Seek while raging.
After you stop raging, you lose any remaining temporary Hit Points from Rage, and you can't Rage again for 1 minute.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
BarbarianThis indicates abilities from the barbarian class.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
EmotionThis effect alters a creature's emotions. Effects with this trait always have the mental trait as well. Creatures with special training or that have mechanical or artificial intelligence are immune to emotion effects.
MentalA mental effect can alter the target's mind. It has no effect on an object or a mindless creature.