Yuma, Proud Protector is a mythic Legendary Creature — Human Ranger card from Outlaws of Thunder Junction Commander (OTC), collector number 4. Current market price: $0.38 (foil $0.45), TCGplayer market prices via Scryfall.
This spell costs {1} less to cast for each land card in your graveyard. Whenever Yuma enters or attacks, you may sacrifice a land. If you do, draw a card. Whenever a Desert card is put into your graveyard from anywhere, create a 4/2 green Plant Warrior creature token with reach.