为 船难筛寻灵 寻找最佳的先驱套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
When Shipwreck Sifters enters, draw a card, then discard a card.
Whenever a Spirit card or a card with disturb is put into your graveyard from anywhere, put a +1/+1 counter on Shipwreck Sifters.
