You clench your fist, crushing your enemies within a huge, invisible grip of force.

Encounter   ✦     Arcane, Evocation, Force, Implement, Zone
Standard Action      Area burst 2 within 20 squares

Target: Each creature in the burst

Attack: Intelligence vs. Reflex

Hit: 3d8 + Intelligence modifier force damage, and the target is immobilized until the end of your next turn.

Effect: The burst creates a zone that lasts until the end of your next turn or until you dismiss it as a minor action. Each square of movement that includes one or more squares of the zone costs 4 extra squares of movement.

Update (1/24/2012)
Updated in Class Compendium.

Published in Player's Handbook, page(s) 166, Class Compendium.