Hufflepuff Common Room

Hufflepuff Common Room enters tapped unless you control a white creature. {T}: Add {W} to your mana pool. Whenever a white creature enters the battlefield under you control, earn 1 house point. (Put 1 house point counter on a house cup artifact token you control. If you don’t control a house cup artifact token, create one first. It has “When this artifact has 40 or more house point counters on it, you win the game.”){/color#ffffff}{/fontsize-27}