M:tG card similarity search
3U · Instant
Counter target instant or sorcery spell. Its controller reveals cards from the top of their library until they reveal an instant or sorcery card. That player may cast that card without paying its mana cost. Then the player shuffles.
| Name | Mana | Type | Text |
|---|---|---|---|
| Darksteel Monolith | 8 | Artifact | Indestructible Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell that you cast from your hand. |
| Arclight Phoenix | 3R | Creature — Phoenix | Flying, haste At the beginning of combat on your turn, if you've cast three or more instant and sorcery spells this turn, return Arclight Phoenix from your graveyard to the battlefield. 3/2 |
| Cloud Key | 3 | Artifact | As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast. |
| Dream Halls | 3UU | Enchantment | Rather than pay the mana cost for a spell, its controller may discard a card that shares a color with that spell. |
| Knowledge Pool | 6 | Artifact | Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library. Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost. |
| Mage Duel | 2G | Sorcery | This spell costs {2} less to cast if you've cast another instant or sorcery spell this turn. Target creature you control gets +1/+2 until end of turn. Then it fights target creature you don't control. (Each deals damage equal to its power to the other.) |
| Geistchanneler | 1U | Creature — Human Wizard | When Geistchanneler enters the battlefield, choose an instant or sorcery card in your hand with mana value 3 or greater. It perpetually gains "This spell costs {2} less to cast." 1/3 |
| Mindsplice Apparatus | 3U | Artifact | Flash At the beginning of your upkeep, put an oil counter on Mindsplice Apparatus. Instant and sorcery spells you cast cost {1} less to cast for each oil counter on Mindsplice Apparatus. |
| Cerebral Eruption | 2RR | Sorcery | Target opponent reveals the top card of their library. Cerebral Eruption deals damage equal to the revealed card's mana value to that player and each creature that player controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand. |
| Galvanic Iteration | UR | Instant | When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. Flashback {1}{U}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) |