Nissa's Judgment is a uncommon Sorcery card from Oath of the Gatewatch (OGW), collector number 139. Current market price: $0.09 (foil $0.24), TCGplayer market prices via Scryfall.
Support 2. (Put a +1/+1 counter on each of up to two target creatures.) Choose up to one target creature an opponent controls. Each creature you control with a +1/+1 counter on it deals damage equal to its power to that creature.