Vampirism

Vampirism and Lesser Vampirism do not work on Bows and Throwing Weapons (including Shurikens). Also, an off-hand weapon with vampirism/lesser vampirism will not grant the vampirism effect if the player is holding a thrower weapon on his main-hand.

Note: A weapon with the Lesser Vampirism suffix provides 1 hit point of positive energy-typed healing every time you damage an enemy (regardless of if the target is alive or not / you need to do at least 1 point of base damage for the effect to proc). It appears as 1 hit point repair on Warforged.

Note: A weapon with the Vampirism suffix provides 1 to 3 hitpoints of positive energy-typed healing every time you damage an enemy. For a Warforged, this weapon suffix provides 1 to 3 repair energy for healing instead of positive energy.