You exhale a blast of freezing wind to slow your enemies' movement.

Encounter   ✦     Arcane, Cold, Implement
Standard Action      Close blast 3

Target: Each creature in the blast

Attack: Charisma vs. Fortitude

Hit: 2d8 + Charisma modifier cold damage, and the target is slowed until the end of its next turn.

Published in Player's Handbook 2, page(s) 144.