Ephemeral Pulse (4e Power)

Ephemeral Pulse	Warmage 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.
Daily  Arcane
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.