Shadows writhe around your weapon, infusing your attack with necrotic energy that deprives your enemy of strength.

Encounter   ✦     Necrotic, Shadow, Weapon
Standard Action      Melee weapon

Target: One creature

Primary Attack: Strength vs. AC

Hit: 1[W] + Strength modifier damage. Make a secondary attack against the target.

  Secondary Attack: Charisma + 2 vs. Reflex

  Hit: Charisma modifier necrotic damage, and the target is weakened until the end of your next turn.

Published in Manual of the Planes, page(s) 146.