Woodwraith Corrupter is a rare Creature — Elemental Horror card from Ravnica: City of Guilds (RAV), collector number 240. Current market price: $0.29 (foil $0.30), TCGplayer market prices via Scryfall.
{1}{B}{G}, {T}: Target Forest becomes a 4/4 black and green Elemental Horror creature. It's still a land.