Giant's Lunge Feat 14
Source Pathfinder Core Rulebook
Prerequisites giant instinct
You extend your body and prepare to attack foes outside your normal reach. Until your rage ends, all your melee weapons and unarmed attacks gain reach 10. This doesn't increase the reach of any weapon or unarmed attack that already has the reach trait, but it does combine with abilities that increase your reach due to increased size, such as Giant's Stature.
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.
RageYou must be raging to use abilities with the rage trait, and they end automatically when you stop raging.