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 |
|---|---|---|---|
| Change the Equation | 1U | Instant | Choose one — • Counter target spell with mana value 2 or less. • Counter target red or green spell with mana value 6 or less. |
| Phyrexian Devourer | 6 | Artifact Creature — Phyrexian Construct | When Phyrexian Devourer's power is 7 or greater, sacrifice it. Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's mana value. 1/1 |
| Ryan Sinclair | 2R | Legendary Creature — Human | Whenever Ryan attacks, exile cards from the top of your library until you exile a nonland card. You may cast the exiled card without paying its mana cost if it's a spell with mana value less than or equal to Ryan's power. Put the exiled cards not cast this way on the bottom of your library in a random order. Doctor's companion (You can have two commanders if the other is the Doctor.) 2/2 |
| Second Guess | 1U | Instant | Counter target spell that's the second spell cast this turn. |
| Treasure Mage | 2U | Creature — Human Wizard | When Treasure Mage enters the battlefield, you may search your library for an artifact card with mana value 6 or greater, reveal it, put it into your hand, then shuffle. 2/2 |
| Nightveil Specter | U/BU/BU/B | Creature — Specter | Flying Whenever Nightveil Specter deals combat damage to a player, that player exiles the top card of their library. You may play lands and cast spells from among cards exiled with Nightveil Specter. 2/3 |
| Triton Fortune Hunter | 2U | Creature — Merfolk Soldier | Heroic — Whenever you cast a spell that targets Triton Fortune Hunter, draw a card. 2/2 |
| Epic Experiment | XUR | Sorcery | Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard. |
| Compleated Conjurer | Creature — Phyrexian Weird | When this creature transforms into Compleated Conjurer, exile the top card of your library. Until the end of your next turn, you may play that card. 3/3 | |
| Cunning Rhetoric | 2B | Enchantment | Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it. |