Beastrider Vanguard is a common Creature — Human Knight card from Aetherdrift (DFT), collector number 154. Current market price: $0.19 (foil $0.23), TCGplayer market prices via Scryfall.
{4}{G}: Look at the top three cards of your library. You may reveal a permanent card from among them and put it into your hand. Put the rest on the bottom of your library in any order.