M:tG card similarity search
UU · Enchantment
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
| Name | Mana | Type | Text |
|---|---|---|---|
| Temporal Extortion | BBBB | Sorcery | When you cast this spell, any player may pay half their life, rounded up. If a player does, counter Temporal Extortion. Take an extra turn after this one. |
| Illumination | WW | Instant | Counter target artifact or enchantment spell. Its controller gains life equal to its mana value. |
| The Twelfth Doctor | 3UR | Legendary Creature — Time Lord Doctor | The first spell you cast from anywhere other than your hand each turn has demonstrate. (When you cast that spell, you may copy it. If you do, choose an opponent to also copy it. A copy of a permanent spell becomes a token.) Whenever you copy a spell, put a +1/+1 counter on The Twelfth Doctor. 4/4 |
| Kentaro, the Smiling Cat | 1W | Legendary Creature — Human Samurai | Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) You may pay {X} rather than pay the mana cost for Samurai spells you cast, where X is that spell's mana value. 2/1 |
| Thrumming Stone | 5 | Legendary Artifact | Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.) |
| Goblin Researcher | 3R | Creature — Goblin Wizard | When Goblin Researcher enters the battlefield, exile the top card of your library. During any turn you attacked with Goblin Researcher, you may play that card. 3/3 |
| Drooling Ogre | 1R | Creature — Ogre | Whenever a player casts an artifact spell, that player gains control of Drooling Ogre. (This effect lasts indefinitely.) 3/3 |
| Blood Funnel | 1B | Enchantment | Noncreature spells you cast cost {2} less to cast. Whenever you cast a noncreature spell, counter that spell unless you sacrifice a creature. |
| Sarkhan the Mad | 3BR | Legendary Planeswalker — Sarkhan | [0]: Reveal the top card of your library and put it into your hand. Sarkhan the Mad deals damage to himself equal to that card's mana value. [−2]: Target creature's controller sacrifices it, then that player creates a 5/5 red Dragon creature token with flying. [−4]: Each Dragon creature you control deals damage equal to its power to target player or planeswalker. Loyalty 7 |
| Foul Emissary | 2G | Creature — Human Horror | When Foul Emissary enters the battlefield, look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order. When you sacrifice Foul Emissary while casting a spell with emerge, create a 3/2 colorless Eldrazi Horror creature token. 1/1 |