Guul Draz Overseer is a rare Creature — Vampire card from Battle for Zendikar (BFZ), collector number 112. Current market price: $0.26 (foil $0.62), TCGplayer market prices via Scryfall.
Flying Landfall — Whenever a land you control enters, other creatures you control get +1/+0 until end of turn. If that land is a Swamp, those creatures get +2/+0 until end of turn instead.