Knowledge Vault [Legends] Chronicles This effect doesn't remove Red

This effect doesn't remove Red Ward

Set: EX: Hidden Legends Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

Set: Urza's Saga Type: Artifact Rarity: Rare Cost: {4} At the beginning of your upkeep

Set: Gym Challenge 1st Edition Type: Trainer Rarity: Holo Rare

Set: Expedition: Base Set Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

Knowledge Vault [Legends] Chronicles This effect doesn't remove RedSet: 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.