Knives of the Soul is a 3rd level Invoker encounter power.
Knives of the Soul
Invoker Attack 3
Two translucent blades burst out of your body and steak toward your enemies. You stagger from the unleashed power.
Ranged 5
Target: One or two creatures
Attack: Wisdom vs. Reflex
Hit: 2d10 + Wisdom modifier force damage, or 2d12 + Wisdom modifier force damage if you target only one creature. You push the target 1 square.
Covenant of Malediction: The number of squares you push the target equals your Constitution modifier.
Effect: You take 5 damage.