You recognize a flaw in a creature's defenses, and you focus your attacks on that weakness.

Daily   ✦     Arcane, Weapon ; Varies
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. AC

Hit: 3[W] + Intelligence modifier damage, and ongoing 5 damage of a type of your choice to which the target is vulnerable (save ends). If the target has no vulnerabilities, it takes ongoing 10 damage of a type of your choice from among acid, cold, fire, lightning, or thunder (save ends).

Miss: Half damage, and ongoing 5 damage of a type of your choice (save ends).

Published in Arcane Power, page(s) 64.