Llanowar Greenwidow is a rare Creature — Spider card from Dominaria United Promos (PDMU), collector number 169p. Current market price: $0.42 (foil $0.84), TCGplayer market prices via Scryfall.
Reach, trample Domain — {7}{G}: Return this card from your graveyard to the battlefield tapped. It gains "If this permanent would leave the battlefield, exile it instead of putting it anywhere else." This ability costs {1} less to activate for each basic land type among lands you control.