为 汹涌巨械 寻找最佳的史迹套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
Flash
When this creature enters, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.
