Ephemeral Pulse (4e Power)

Ephemeral Pulse	Warmage 4e Power Type::Utility 2
You emit a quick blast of arcane energy after taking a blow, knocking your foes back with great force and giving you enough room to plan your next move.
4e Power Usage::Daily  Arcane
4e Power Action Type::Immediate Reaction	Close burst 2
Trigger: You are hit by an attack.
Target: Each enemy in burst
Effect: The target is pushed a number of squares equal to your Wisdom modifier and rolls a Reflex saving throw against your Intellect. If it fails, it is knocked prone.