Knowledge Vault [Legends] Magic The Gathering Sealed target opponent discards half the

target opponent discards half the cards in their hand

And now it appears in the hands of the arrogant child Chandra Nalaar

instead shuffle your graveyard into your library

whenever a player taps a Swamp for mana

Reverse Type: Legendary Enchantment — God // Legendary Enchantment At the beginning of your upkeep

Knowledge Vault [Legends] Magic The Gathering Sealed target opponent discards half theSet: 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.