Moldervine Cloak is a common Enchantment — Aura card from Modern Masters (MMA), collector number 155. Current market price: $0.13 (foil $0.20), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +3/+3. Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)