为 放声狂笑 寻找最佳的标准套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
As an additional cost to cast this spell, discard a card.
Draw two cards.
Flashback (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)
