神器
压印~当知识之池进战场时,每位牌手各放逐其牌库顶的三张牌。
每当一位牌手从其手牌中施放咒语时,该牌手将它放逐。 若该牌手如此作,该牌手可以施放另一张以知识之池放逐的非地牌,且不须支付其法术力费用。
If the original spell isn’t exiled (perhaps because it’s countered by another spell or ability before Knowledge Pool’s second triggered ability resolves), the rest of the ability does nothing. The player doesn’t get to cast an exiled card.