Crucial Resurgence is a 9th level cleric Daily power that was introduced in Divine Power.
Crucial Resurgence
Cleric Attack 9
The pain of your wounds only inspires you to greater heights.
Melee weapon
Requirement: You must be bloodied.
Target: One creature
Attack: Strength vs. AC
Hit: 2[W] + Strength modifier damage.
Effect: You and each ally within 5 squares of you can spend a healing surge.