Falkenrath Exterminator is a uncommon Creature — Vampire Archer card from Avacyn Restored (AVR), collector number 134. Current market price: $0.13 (foil $1.08), TCGplayer market prices via Scryfall.
Whenever this creature deals combat damage to a player, put a +1/+1 counter on it. {2}{R}: This creature deals damage to target creature equal to the number of +1/+1 counters on this creature.