Knowledge Vault 知识库
{2}, {T}: Exile the top card of your library face down.
{0}: Sacrifice this artifact. If you do, discard your hand, then put all cards exiled with this artifact into their owner's hand.
When this artifact leaves the battlefield, put all cards exiled with it into their owner's graveyard.
{2}, {T}: Exile the top card of your library face down.
{0}: Sacrifice this artifact. If you do, discard your hand, then put all cards exiled with this artifact into their owner's hand.
When this artifact leaves the battlefield, put all cards exiled with it into their owner's graveyard.
{2}，{T}：牌面朝下地放逐你的牌库顶牌。
{0}：牺牲此神器。若你如此作，则弃掉你的手牌，然后将所有以此神器放逐的牌置于其拥有者手上。
当此神器离开战场时，将所有以它放逐的牌置入其拥有者的坟墓场。
Paratranz翻译信息
规则叙述翻译：MTGZH
背景叙述翻译：
牌图来源：
单卡释疑
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(2009-10-01 gpt)
如果你起动知识库的第二个异能，则在该异能结算时，你只需支付{零}这个费用。于该异能结算时，你必须牺牲知识库，此为强制性。如果你能如此作，则你便要弃掉你的手牌，并将所有以知识库放逐的牌置于其拥有者手上。如果你无法如此作（例如知识库在该异能结算前已离开战场或已更换操控者），则什么都不会发生。
If you activate Knowledge Vault's second ability, all that happens at that time is that you pay a cost of {0}. As the ability resolves, you must sacrifice Knowledge Vault. This is mandatory. If you are able to do so, you discard your hand and put all cards exiled with Knowledge Vault into their owners' hands. If you aren't able to do so because Knowledge Vault left the battlefield or changed controllers before the ability resolves, nothing happens. -
(2009-10-01 gpt)
你不能检视以知识库放逐的牌。
You don't get to look at the cards exiled with Knowledge Vault. -
(2008-10-01 gpt)
你可以在你拥有优先权的任何时机起动第二个异能，包括回应其本身。不过，你只能在第一个此类异能结算时牺牲知识库。
You can activate the second ability any time you have priority, including in response to itself. However, you will only be able to sacrifice the Vault as the first such ability resolves.