Rowan's Stalwarts is a rare Creature — Human Knight card from Throne of Eldraine (ELD), collector number 307. Current market price: $0.15, TCGplayer market prices via Scryfall.
When this creature enters, you may search your library and/or graveyard for a card named Rowan, Fearless Sparkmage, reveal it, and put it into your hand. If you search your library this way, shuffle.