Knowledge Vault [Legends] SM201 Set: Mirage Type: World Enchantment

Set: Mirage Type: World Enchantment Rarity: Rare Cost: {1}{G}{G} At the beginning of each player's upkeep

Set: EX: Trainer Kit 2 - Plusle Type: Lightning Rarity: Promo Retreat cost: Colorless

but my host would casually push it down before I could make out what it was

Set: EX: Dragon Type: Colorless Rarity: Uncommon Retreat cost: Colorless

Set: Skyridge Type: Water Rarity: Holo Rare Retreat cost: Colorless

Knowledge Vault [Legends] SM201 Set: Mirage Type: World EnchantmentSet: 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.