Elder vampiric essence
From Lootbox RPG Wiki
Description
From the evil old heart.
If combined with a weapon, the weapon will gain the "Leech" special attack, giving the player health upon each hit.
Stats
Rarity: Rare
Value: 500 Gold
Armor: +0
Base Damage: 0
Special Damage: Leech (Power 3), Chance: 100%
Modifiers:
Loot Table
Release
Introduced with version 1.97