Warlock Utility Convocation of Shadows
Each time an enemy falls before you, you call on its departing shade to pull you partway to the realm of darkness.
At-Will Arcane, Shadow
Free Action Personal
Trigger: You reduce an enemy to 0 hit points, or an enemy adjacent to you drops to 0 hit points.
Effect: You are insubstantial and phasing until the end of your next turn.
Published in Heroes of Shadow, page(s) 93.