为 刻法涅纪念碑 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！
Blue creature spells you cast cost less to cast.
Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.
