Varchild, Betrayer of Kjeldor is a rare Legendary Creature — Human Knight card from The List (PLST), collector number C18-28. Current market price: $2.00, TCGplayer market prices via Scryfall.
Whenever Varchild deals combat damage to a player, that player creates that many 1/1 red Survivor creature tokens. Survivors your opponents control can't block, and they can't attack you or planeswalkers you control. When Varchild leaves the battlefield, gain control of all Survivors.