{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.
Near Mint - $34.700
Lightly Played - $27.700
Moderately Played - $24.300
Heavily Played - $20.800
Damaged - $17.400
Near Mint Spanish - $34.700
Lightly Played Spanish - $27.700
Moderately Played Spanish - $24.300
Heavily Played Spanish - $20.800
Damaged Spanish - $17.400