Acclaimed Contender is a rare Creature — Human Knight card from Throne of Eldraine Promos (PELD), collector number 1p. Current market price: $0.48 (foil $0.44), TCGplayer market prices via Scryfall.
When this creature enters, if you control another Knight, look at the top five cards of your library. You may reveal a Knight, Aura, Equipment, or legendary artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.