Cripta della Conoscenza

, 4 (4)
Illus. Amy Weber

Artifact
{2}, {T}: Exile the top card of your library face down.
{0}: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand.
When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.¹

Gatherer Card Rulings [Nov 2009]

• 10/1/2008: You can play the second ability any time you have priority, including in response to itself. However, you will only be able to sacrifice the Vault the first such ability resolves.
• 10/1/2008: You only put the cards into your hand if you actually sacrifice Knowledge Vault as its ability resolves. If you can't sacrifice it (for instance, because it was removed from play before the ability resolved), then the cards will remain removed from the game.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/2)	Leggende (Rare)