Greater Mossdog is a common Creature — Plant Dog card from Ravnica Remastered (RVR), collector number 145. Current market price: $0.17 (foil $0.12), TCGplayer market prices via Scryfall.
Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)