Knowledge Vault
Artifact
$41.77
Market price
0
Public decks
Rules Text
Legality
Commander
LegalDuel Commander
LegalLegacy
LegalOathbreaker
LegalOld School
LegalPreDH
LegalVintage
LegalAlchemy
Not legalBrawl
Not legalCompetitive Brawl
Not legalFuture
Not legalGladiator
Not legalHistoric
Not legalModern
Not legalPauper
Not legalPauper Commander
Not legalPenny Dreadful
Not legalPioneer
Not legalPremodern
Not legalStandard
Not legalStandard Brawl
Not legalTimeless
Not legalTLR
Not legalRulings
- Oct 1, 2009 · Wizards of the Coast
You don't get to look at the cards exiled with Knowledge Vault.
- Oct 1, 2009 · Wizards of the Coast
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.
- Oct 1, 2008 · Wizards of the Coast
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.
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