Starwinder is a rare Creature — Leviathan card from Edge of Eternities Promos (PEOE), collector number 79p. Current market price: $1.01 (foil $0.96), TCGplayer market prices via Scryfall.
Whenever a creature you control deals combat damage to a player, you may draw that many cards. Warp {2}{U}{U} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)