Puresteel Paladin is a rare Creature — Human Knight card from New Phyrexia (NPH), collector number 20. Current market price: $1.85 (foil $16.81), TCGplayer market prices via Scryfall.
Whenever an Equipment you control enters, you may draw a card. Metalcraft — Equipment you control have equip {0} as long as you control three or more artifacts.