Charging at your foe and knocking it to the ground, you call on the spirit of the thunderfury boar to drive you into a frenzy. In your rage, you lash out at foes that attack you.

Daily   ✦     Primal, Rage, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 3[W] + Strength modifier damage, and you knock the target prone.

Miss: Half damage.

Effect: You enter the rage of the thunderfury boar. Until the rage ends, when any enemy adjacent to you hits or misses you, you can make a melee basic attack against that enemy as an immediate reaction.

Published in Player's Handbook 2, page(s) 57.