Scars of Steel
Feat 4
Source Pathfinder Player Core 2
Prerequisites Fury Instinct
Frequency once per day
Trigger An opponent critically hits you with an attack that deals physical damage.
When you are struck with the mightiest of blows, you can flex your muscles to turn aside some of the damage. You gain resistance to the triggering attack equal to your Constitution modifier plus half your level.
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.
RageYou must be raging to use abilities with the rage trait, and they end automatically when you stop raging.