Knowledge Vault [Legends] Island Mountain gain control of all creatures

gain control of all creatures blocking The Wretched for as long as you control The Wretched

Set: Judge Gift Cards 1999 Type: Instant Rare Cost: {1}{U} Counter target spell

At the beginning of the end step

Set: Commander 2016 Type: Enchantment Rare Cost: {1}{B} Whenever an opponent discards a creature card

You may cast that card without paying its mana cost

Knowledge Vault [Legends] Island Mountain gain control of all creaturesSet: Legends Type: Artifact 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.