Weapons increasing Strength when equipped restore small amounts of HP on hit. All physical attacks will trigger this effect and successfully convert a percentage of the damage dealt to health regained.
Abilities dealing damage scaling off Strength will also grant some 
Life Steal (Effect).
Life Steal (Ability) (No Ranks; 10% Mana): regains HP on hit. The amount absorbed scales off 271% Strength (One Enemy). This ability is only learnt by 
Warriors so far, and it’s different from:
Life Steal (Effect) (New!): converts a percentage of the physical damage dealt to health regained on hit. Depending on the weapon equipped, this effect goes from 24% to 43%of the damage dealt.- The damage formula used is the usual: (attacker’s_attack*4)–(defender’s_defense*2).
This feature has been added thanks to Shanghai Simple Script — Vampiric Weapons.
Leomorn Sword 