为 蝌蚪猛击 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！
Affinity for Frogs (This spell costs less to cast for each Frog you control.)
Target creature you control deals damage equal to twice its power to target creature you don't control.
