为 Shriek, Treblemaker 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！
At the beginning of your first main phase, you may discard a card. When you do, target creature can't block this turn.
Whenever a creature an opponent controls dies, Crash deals 1 damage to that player.
