Knowledge Vault
LEGLegends/#281/1994Rare◆ Graded data
Reserved listMV 4
Current paper retail
Card Kingdom$39.99
Cardmarket€34.20
ManaPool$19.68
TCGplayer$41.77
Buylist (dealers pay)
Card Kingdom$22.00
Paper retail history (USD)
3 providers
Latest $39.99High $44.99Low $39.99▼ 11.1%
Market and collecting
Market overview
$41.77TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 0.0%30d▼ 0.0%90d▼ 13.1%
90d high
$48.16
90d low
$41.77
Paper printings priced
1
Currently 1st
Cheapest paper printing
$41.77
Legends
- Down 0.0% over the last 30 days on TCGplayer.
- Currently 13% below its 90 day high of $48.16.
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Graded market
Graded card prices
Graded prices are market estimates for professionally graded copies of this exact printing where sufficient market data is available.
Additional graded market
AnyGrade 9.5
$120.00
AnyGrade 9
$60.03
AnyGrade 8
$26.18
AnyGrade 7
$21.00
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Collect
Play
Compare printings (1 priced)
Gameplay and rules
Artifact
, : Exile the top card of your library face down.
: 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.
Card capabilities
ArtifactExile effect
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (3)
wotc1 Oct 2009
You don't get to look at the cards exiled with Knowledge Vault.
wotc1 Oct 2009
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.
wotc1 Oct 2008
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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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
About this card
Knowledge Vault
Knowledge Vault is an Artifact, with mana cost {4} (mana value 4).
Format legality: Commander: legal, Modern: not_legal, Standard: not_legal, Pioneer: not_legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $41.77 (down 0.0% over 30 days).
This exact printing has graded market data available further up the page. Graded prices reflect professionally slabbed copies; missing (grader, grade) combinations do not appear.
Frequently asked
Knowledge Vault FAQ
How much is Knowledge Vault worth?
The current TCGplayer USD retail price for Knowledge Vault is $41.77. It is down 0.0% over the last 30 days. Over 90 days it has ranged from $41.77 to $48.16.
What is the cheapest printing of Knowledge Vault?
The cheapest currently priced paper printing is from Legends at $41.77 on TCGplayer.
What set was Knowledge Vault first printed in?
The earliest English paper printing that MTGPrices tracks is from LEG #281, released 1994-06-01.
Is Knowledge Vault legal in Commander?
Yes, Knowledge Vault is currently legal in Commander per Scryfall's legality feed.
Is Knowledge Vault legal in Modern?
Knowledge Vault is not currently legal in Modern per Scryfall's legality feed.
Is Knowledge Vault legal in Standard?
Knowledge Vault is not currently legal in Standard per Scryfall's legality feed.
What does Knowledge Vault do?
Knowledge Vault is an Artifact with mana cost {4}. Its Oracle text reads: "{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.".