You knock your enemy to the ground with a slam like the behemoth's heavy tail, and the rage of the macetail fills you, refreshing you with every blow of your weapon.

Daily   ✦     Primal, Rage, Weapon
Standard Action      Close burst 1

Target: Each enemy in the burst you can see

Attack: Strength vs. Reflex

Hit: 1[W] + Strength modifier damage, and you knock the target prone.

Miss: Half damage.

Effect: You enter the rage of the macetail behemoth. Until the rage ends, whenever you hit, you gain temporary hit points equal to your Strength modifier.

Published in Player's Handbook 2, page(s) 51.