The Weaver King is a rare Legendary Creature — Horror Wizard card from Mystery Booster: Commander Edition (MBC), collector number 56.
Shadow (This creature can block or be blocked by only creatures with shadow.) Whenever The Weaver King deals combat damage to a player, they mill that many cards. Then for each opponent, put a creature card from that player's graveyard that was put there from their library this turn onto the battlefield under your control.