M:tG card similarity search
4 · Artifact
{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.
| Name | Mana | Type | Text |
|---|---|---|---|
| Vivien, Monsters' Advocate | 3GG | Legendary Planeswalker — Vivien | You may look at the top card of your library any time. You may cast creature spells from the top of your library. [+1]: Create a 3/3 green Beast creature token. Put your choice of a vigilance counter, a reach counter, or a trample counter on it. [−2]: When you next cast a creature spell this turn, search your library for a creature card with lesser mana value, put it onto the battlefield, then shuffle. Loyalty 3 |
| The Grand Calcutron | WU | Legendary Artifact | The Grand Calcutron can be your commander. When The Grand Calcutron enters the battlefield, each player's hand becomes a program (an ordered row of revealed cards). Players can only play the first card of their program. If a card would be put into a player's hand from anywhere, that player reveals it and places it anywhere within their program instead. At the beginning of each player's end step, if that player's program has fewer than five cards, they draw cards equal to the difference. |
| Clever Distraction | Enchantment — Aura | Enchant creature Enchanted creature has "Whenever this creature attacks, tap target creature defending player controls." If Clever Distraction would be put into a graveyard from anywhere, exile it instead. | |
| Sanity Grinding | UUU | Sorcery | Chroma — Reveal the top ten cards of your library. For each blue mana symbol in the mana costs of the revealed cards, target opponent mills a card. Then put the cards you revealed this way on the bottom of your library in any order. |
| Copper Longlegs | 1G | Creature — Phyrexian Spider | Reach {1}{G}, Sacrifice Copper Longlegs: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) 1/3 |
| Rootwater Thief | 1U | Creature — Merfolk Rogue | {U}: Rootwater Thief gains flying until end of turn. Whenever Rootwater Thief deals combat damage to a player, you may pay {2}. If you do, search that player's library for a card and exile it, then the player shuffles. 1/2 |
| Submerge | 4U | Instant | If an opponent controls a Forest and you control an Island, you may cast this spell without paying its mana cost. Put target creature on top of its owner's library. |
| Thwart | 2UU | Instant | You may return three Islands you control to their owner's hand rather than pay this spell's mana cost. Counter target spell. |
| Meadowboon | 2WW | Creature — Elemental | When Meadowboon leaves the battlefield, put a +1/+1 counter on each creature target player controls. Evoke {3}{W} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.) 3/3 |
| Nim Devourer | 3BB | Creature — Zombie | Nim Devourer gets +1/+0 for each artifact you control. {B}{B}: Return Nim Devourer from your graveyard to the battlefield, then sacrifice a creature. Activate only during your upkeep. 4/1 |