結界
當知識祀煉進戰場時,抽三張牌,然後棄一張牌。
當一個魔符在你的操控下進戰場時,將知識祀煉移回其擁有者的手上。
Each Trial has an ability to return to your hand when a Cartouche enters the battlefield under your control. The Trial is returned to its owner's hand only if it's on the battlefield as the ability resolves.