Even as your foe connects, you leap backward, out of the way of further harm.

Encounter   ✦     Martial
Immediate Reaction      Personal

Trigger: An enemy damages you with a melee attack

Effect: You can shift a number of squares equal to your Wisdom modifier. Gain a +2 power bonus to all defenses until the end of your next turn.

Published in Player's Handbook, page(s) 106.