Magic: the Gathering (MTG) Enchantment — Aura card from Beta Edition courtesy of Deckmaster
Put a counter on target artifact for each life you lose. During upkeep you may trade one counter for one life, but you can only trade in one counter each turn.
2E • ENAnson Maddocks
™ & © 1993—1993 Wizards of the Coast
Legal in: Legacy,Vintage,Commander
You can cast it targeting your opponent's artifacts. The controller of the Aura (not the controller of the artifact) controls the Living Artifact ability.
Does not trigger on loss of life, just on damage.