Charnel Troll is a rare Creature — Troll card from Guilds of Ravnica (GRN), collector number 160. Current market price: $0.08 (foil $0.29), TCGplayer market prices via Scryfall.
Trample At the beginning of your upkeep, exile a creature card from your graveyard. If you do, put a +1/+1 counter on this creature. Otherwise, sacrifice it. {B}{G}, Discard a creature card: Put a +1/+1 counter on this creature.