You whisper a word of elemental power and hurl a flaming ball of ice. Waves of fire and ice explode outward from the point of impact.

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

Target: Each creature in the burst

Attack: Intelligence vs. Fortitude

Hit: 3d6 + Intelligence modifier cold and fire damage.

Effect: The burst creates a zone of difficult terrain that lasts until the end of your next turn or until you dismiss it as a minor action. Any creature that starts its turn in the zone takes 5 cold and fire damage.

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

Published in Player's Handbook, page(s) 164, Class Compendium.