Willie Lumpkin, Postman is a rare Legendary Creature — Human Citizen card from Marvel Super Heroes Commander (MSC), collector number 425. Current market price: $4.24, TCGplayer market prices via Scryfall.
Willie Lumpkin can't be blocked. Whenever Willie Lumpkin deals combat damage to an opponent, you draw a card and that player may draw a card. If they do, that player can't attack you or permanents you control during their next turn.