Converts 100% physical weapon damage to magic damage. Conversion occurs after +% Damage and a critical hit from a weapon Mastery, Critical Strike or Deadly Strike are applied and before resistance is applied: Damage Resist won't affect converted magic damage but Magic Resist will. Consequently, no damage is returned with Thorns, Iron Maiden and Spirit of Barbs, no life is returned by Life Tap and % Life Stolen per hit, and no mana is returned by % Mana Stolen per hit.

Applied by any melee or ranged attack with the exception of Blade Sentinel, Blade Shield and the additional arrows of Multiple Shot (only applied by the original two arrows).