先知秘窖

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，：放逐你的牌库顶牌。直到回合结束，你可以使用该牌。在先知秘窖上放置一个石砖指示物。
：放逐你的牌库顶牌。直到回合结束，你可以使用该牌且不需支付其法术力费用。只能于先知秘窖上有三个或更多石砖指示物时起动此异能。

Rulings:

• 4/18/2017 The cards exiled by Oracle’s Vault are exiled face up.
• 4/18/2017 You may play the exiled card this turn even if Oracle’s Vault is no longer on the battlefield or under your control.
• 4/18/2017 Playing a card exiled with Oracle’s Vault follows the normal timing rules for playing that card. For example, if the card is a creature card, you can cast that card only during your main phase while the stack is empty.
• 4/18/2017 If the exiled card is a land card, you may play it only if you have an available land play this turn.
• 4/18/2017 If you don’t play the card, it will remain exiled.
• 4/18/2017 The first ability of Oracle’s Vault puts a brick counter on it even if you can’t or don’t play the card.
• 4/18/2017 If you cast a card “without paying its mana cost,” you can’t choose to cast it for any alternative costs, such as emerge costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Tormenting Voice, those must be paid to cast the card.
• 4/18/2017 If the card has X in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.