Your weapon turns pitch black as you strike. The wound it leaves behind drains your enemy of strength when it attacks your allies.

Daily   ✦     Arcane, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. Fortitude

Hit: 2[W] + Intelligence modifier damage.

Effect: The target's attacks deal half damage to your allies (save ends).

Published in Arcane Power, page(s) 55.