Draconic Intervention is a rare Sorcery card from Strixhaven: School of Mages (STX), collector number 96. Current market price: $0.19 (foil $0.42), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, exile an instant or sorcery card from your graveyard. Draconic Intervention deals X damage to each non-Dragon creature, where X is the exiled card's mana value. If a creature dealt damage this way would die this turn, exile it instead. Exile Draconic Intervention.