You draw on your enemy's natural resilience to protect your allies from harm.

Daily   ✦     Arcane, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. AC

Hit: 1[W] + Intelligence modifier damage.

Effect: Choose acid, cold, fire, force, lightning, necrotic, poison, psychic, radiant, or thunder. The target gains vulnerable 5 to that damage type (save ends). Each ally within 5 squares of you gains resist 5 to that damage type until the end of the encounter.

Published in Arcane Power, page(s) 54.