What Must Be Done is a rare Sorcery card from Assassin's Creed (ACR), collector number 157. Current market price: $0.41 (foil $0.39), TCGplayer market prices via Scryfall.
Choose one — • Let the World Burn — Destroy all artifacts and creatures. • Release Juno — Return target historic permanent card from your graveyard to the battlefield. It enters with two additional +1/+1 counters on it if it's a creature. (Artifacts, legendaries, and Sagas are historic.)