Ritual of Hope is a uncommon Instant card from Innistrad: Double Feature (DBL), collector number 31. Current market price: $0.13 (foil $0.40), TCGplayer market prices via Scryfall.
Creatures you control get +1/+1 until end of turn. Coven — If you control three or more creatures with different powers, creatures you control get +2/+1 until end of turn instead.