Barrenton Medic is a common Creature — Kithkin Cleric card from Shadowmoor (SHM), collector number 4. Current market price: $0.25 (foil $5.06), TCGplayer market prices via Scryfall.
{T}: Prevent the next 1 damage that would be dealt to any target this turn. Put a -1/-1 counter on this creature: Untap this creature.