Basri, Tomorrow's Champion is a rare Legendary Creature — Human Knight card from Aetherdrift (DFT), collector number 355. Current market price: $0.32 (foil $0.40), TCGplayer market prices via Scryfall.
{W}, {T}, Exert Basri: Create a 1/1 white Cat creature token with lifelink. (An exerted creature won't untap during your next untap step.) Cycling {2}{W} ({2}{W}, Discard this card: Draw a card.) When you cycle this card, Cats you control gain hexproof and indestructible until end of turn.