{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 - $34.900
Lightly Played - $27.900
Moderately Played - $24.400
Heavily Played - $20.900
Damaged - $17.500
Near Mint Spanish - $34.900
Lightly Played Spanish - $27.900
Moderately Played Spanish - $24.400
Heavily Played Spanish - $20.900
Damaged Spanish - $17.500