Knowledge Vault [Legends] Nightmare Demon • Gain control of all

• Gain control of all creatures with power 3 or less until end of turn

Spend this mana only to activate abilities of artifacts

Return a land you control to its owner's hand: Target player mills two cards

Set: Modern Masters 2015 Type: Artifact Creature — Soldier Rarity: Rare Cost: {3} Metalcraft — Etched Champion has protection from all colors as long as you control three or more artifacts

Knowledge Vault [Legends] Nightmare Demon • Gain control of allSet: 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.