Pelt Collector is a rare Creature — Elf Warrior card from Guilds of Ravnica (GRN), collector number 141. Current market price: $0.36 (foil $0.83), TCGplayer market prices via Scryfall.
Whenever another creature you control enters or dies, if that creature's power is greater than this creature's, put a +1/+1 counter on this creature. As long as this creature has three or more +1/+1 counters on it, it has trample.