As your foes draw near you, fear steals into their hearts.

Encounter   ✦     Arcane, Fear, Zone
Minor Action      Close burst 3

Effect: The burst creates a zone of fear that lasts until the end of your next turn. When you move, the zone moves with you, remaining centered on you. The zone is difficult terrain for your enemies. While within the zone, any enemy takes a penalty to attack rolls equal to your Strength modifier.

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