Vengeful Strike 
Feat 14BarbarianRageSource Core Rulebook pg. 93 2.0Prerequisites Come and Get MeRequirements You’re under the effect of Come and Get Me.
Trigger A creature within your reach succeeds or critically succeeds at an attack against you.
When struck by an enemy, you respond in turn. Make a melee Strike against the triggering creature. This Strike doesn’t count toward your multiple attack penalty, and your multiple attack penalty doesn’t apply to this Strike.
Traits
Rage: You must be raging to use abilities with the rage trait, and they end automatically when you stop raging.