Like a smith's hammer striking the anvil, you strike your enemy with a ringing blow that leaves it disoriented.

Encounter   ✦     Martial, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 2[W] + Strength modifier damage, and the target is dazed until the end of your next turn.

  Weapon: If you're wielding a hammer or a mace, the target is stunned instead of dazed.

Published in Player's Handbook, page(s) 81, Class Compendium.