Bloodletter Quill is a rare Artifact card from Ravnica: City of Guilds (RAV), collector number 254. Current market price: $0.31 (foil $0.50), TCGplayer market prices via Scryfall.
{2}, {T}, Put a blood counter on this artifact: Draw a card, then you lose 1 life for each blood counter on this artifact. {U}{B}: Remove a blood counter from this artifact.