Health Stealer is silver Tarot Card obtainable in Shadowland. When it is equipped, 2,5% of damage to enemy is converting into player's health. It costs 2000 gold. To acquire it, player has to kill King Alastor in less than 4:00.
In Painkiller Hell & Damnation this card can be obtained after completing DLC The Clock Strikes Meat Night and doesn't cost any gold.