Knowledge Vault [Legends] Ooze Dragon" cannot attack during this

Dragon" cannot attack during this turn

"I have always imagined my mother as such a woman

you may exert it as it attacks

and put it into your hand

Special Summon 1 "Destiny Hero" monster from your Graveyard (except a "Destiny Hero - Fear Monger") during your next Standby Phase

Knowledge Vault [Legends] Ooze Dragon" cannot attack during thisSet: Legends Type: Artifact Rarity: Rare Cost: {4} {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.