Immortal Coil is a rare Artifact card from Shards of Alara (ALA), collector number 79. Current market price: $0.54 (foil $2.37), TCGplayer market prices via Scryfall.
{T}, Exile two cards from your graveyard: Draw a card. If damage would be dealt to you, prevent that damage. Exile a card from your graveyard for each 1 damage prevented this way. When there are no cards in your graveyard, you lose the game.