Knowledge Vault [Legends] RC12 Negate the activation of a

Negate the activation of a Spell/Trap Card/ Normal Summon/ Flip Summon/ Special Summon and destroy the Spell Card

Set: Cybernetic Revolution Card type: Field Spell Card Rarity: Ultimate Rare When a monster that includes Elemental Hero in its card name attacks

this card cannot be selected as an attack target

the attacking monster gains 1000 ATK during damage calculation only

Both you and your opponent can use this effect as long as this card remains face-up on the field

Knowledge Vault [Legends] RC12 Negate the activation of aSet: 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.