You drop your guard as you come close for your attack, drawing primal strength from the violence directed at you.

Encounter   ✦     Primal, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 2[W] + Strength modifier damage.

Special: You can choose to provoke opportunity attacks when you make this attack. If you do so, you gain a +1 bonus to the attack roll for each creature that attacks you, and the attack deals 1[W] extra damage.

Published in Player's Handbook 2, page(s) 54.