为 狐面的绝招 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！
Sneak (You may cast this spell for if you also return an unblocked attacker you control to hand during the declare blockers step.)
Target opponent mills half their library, rounded up.
