Comforting Counsel is a rare Enchantment card from Secrets of Strixhaven (SOS), collector number 143. Current market price: $0.25 (foil $0.32), TCGplayer market prices via Scryfall.
Whenever you gain life, put a growth counter on this enchantment. As long as there are five or more growth counters on this enchantment, creatures you control get +3/+3.