Reverent Hunter is a rare Creature — Human Archer card from Theros (THS), collector number 173. Current market price: $0.22 (foil $0.51), TCGplayer market prices via Scryfall.
When this creature enters, put a number of +1/+1 counters on it equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)