Knowledge Vault [Legends] Zendikar Promos This card cannot be destroyed

This card cannot be destroyed by battle with a DARK monster

Set: EX: Emerald Type: Colorless Rarity: Common Retreat cost: Colorless

you may reveal this card from your hand and pay its splice cost

−6: Create five 4/4 red Dragon creature tokens with flying

Set: Kaladesh Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell

Knowledge Vault [Legends] Zendikar Promos This card cannot be destroyedSet: 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.