Molderhulk is a uncommon Creature — Fungus Zombie card from Guilds of Ravnica (GRN), collector number 190. Current market price: $0.27 (foil $0.61), TCGplayer market prices via Scryfall.
Undergrowth — This spell costs {1} less to cast for each creature card in your graveyard. When this creature enters, return target land card from your graveyard to the battlefield.