Knight-Errant of Eos is a rare Creature — Human Knight card from March of the Machine (MOM), collector number 26. Current market price: $0.32 (foil $0.38), TCGplayer market prices via Scryfall.
Convoke When this creature enters, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked this creature. Put the revealed cards into your hand, then shuffle.