Knowledge Vault [Legends]Set: 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.

they flow restlessly from one shape to another

Set: Legends Type: World Enchantment Rarity: Rare Cost: {2}{G}{G} All lands are 1/1 creatures that are still lands

Set: Portal Three Kingdoms Type: Creature — Human Soldier Rarity: Rare Cost: {3}{R} Horsemanship (This creature can't be blocked except by creatures with horsemanship

every fear

Set: San Diego Comic-Con 2015 Type: Legendary Creature — Elf Scout Rarity: Mythic Cost: {2}{G} When Nissa

and a land

At the beginning of each opponent's upkeep

Sacrifice Horizon Canopy: Draw a card

Whenever the fourth spell of a turn is cast

Set: Portal Three Kingdoms Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {1}{U}{U} {T}: Return Lady Sun and another target creature to their owners' hands

Set: Khans of Tarkir Prerelease Promos Type: Instant Rarity: Rare Cost: {R}{W} The next time a source of your choice would deal damage to you this turn

As long as your devotion to white and black is less than seven