You refuse death's call and push yourself to keep fighting.

Daily   ✦     Healing, Martial
Immediate Interrupt      Personal

Trigger: You drop below 1 hit point.

Effect: You use one of your at-will attack powers. If the attack reduces its target to 0 hit points or fewer, you can spend a healing surge.

Published in Into the Unknown: The Dungeon Survival Handbook, page(s) 10.