Rubblehulk is a rare Creature — Elemental card from Gatecrash Promos (PGTC), collector number 191★. Current market price: — (foil $0.32), TCGplayer market prices via Scryfall.
Rubblehulk's power and toughness are each equal to the number of lands you control. Bloodrush — {1}{R}{G}, Discard this card: Target attacking creature gets +X/+X until end of turn, where X is the number of lands you control.