Intrepid Stablemaster is a uncommon Creature — Human Scout card from Outlaws of Thunder Junction (OTJ), collector number 169. Current market price: $0.19 (foil $0.21), TCGplayer market prices via Scryfall.
Reach {T}: Add {G}. {T}: Add two mana of any one color. Spend this mana only to cast Mount or Vehicle spells.