Angelheart Vial is a rare Artifact card from Rise of the Eldrazi (ROE), collector number 215. Current market price: $0.43 (foil $4.49), TCGplayer market prices via Scryfall.
Whenever you're dealt damage, you may put that many charge counters on this artifact. {2}, {T}, Remove four charge counters from this artifact: You gain 2 life and draw a card.