You slice into your foe, and a freezing wind of the Elemental Chaos howls from the wound.

At-Will   ✦     Arcane, Cold, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. AC

Hit: 1[W] + Intelligence modifier cold damage. A different enemy marked by you within 3 squares of you takes cold damage equal to your Constitution modifier.
Level 21: 2[W] + Intelligence modifier cold damage.

Published in PH Heroes: Series 2.