Wildwood Scourge is a uncommon Creature — Hydra card from Core Set 2021 (M21), collector number 214. Current market price: $0.18 (foil $0.35), TCGplayer market prices via Scryfall.
This creature enters with X +1/+1 counters on it. Whenever one or more +1/+1 counters are put on another non-Hydra creature you control, put a +1/+1 counter on this creature.