Shower of Coals is a uncommon Sorcery card from Odyssey (ODY), collector number 221. Current market price: $0.24 (foil $0.38), TCGplayer market prices via Scryfall.
Shower of Coals deals 2 damage to each of up to three targets. Threshold — Shower of Coals deals 4 damage to each of those permanents and/or players instead if there are seven or more cards in your graveyard.