为 坚贞信念 寻找最佳的先驱套牌，包括其胜率、热度，以及该牌在万智牌：竞技场中的合法赛制！
Enchant creature you control
When this Aura enters, exile target creature an opponent controls until this Aura leaves the battlefield.
Enchanted creature gets +2/+2.
