Blizzard Mage Utility 12Cloak of Freezing Wind

The icy chill of winter surrounds you as cold, whipping wind protects you from attacks.

Daily        Arcane, Cold
Minor Action      Personal

Effect: Until the end of the encounter, each creature that hits you with a melee attack takes 1d8 + your Charisma modifier cold damage, and you push that creature 1d4 + 2 squares.

Published in Arcane Power, page(s) 42.