M:tG card similarity search
2G · Enchantment
Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X. Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.
| Name | Mana | Type | Text |
|---|---|---|---|
| Onyx Talisman | 2 | Artifact | Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent. |
| Mirran Spy | 2U | Creature — Drone | Flying Whenever you cast an artifact spell, you may untap target creature. 1/3 |
| Captive Weird | U | Creature — Weird | Defender {3}{R/P}: Transform Captive Weird. Activate only as a sorcery. ({R/P} can be paid with either {R} or 2 life.) 1/3 |
| 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. |
| Spell Swindle | 3UU | Instant | Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.") |
| Disappearing Act | 1UU | Instant | As an additional cost to cast this spell, return a permanent you control to its owner's hand. Counter target spell. |
| Takenuma, Abandoned Mire | Legendary Land | {T}: Add {B}. Channel — {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control. | |
| Malachite Talisman | 2 | Artifact | Whenever a player casts a green spell, you may pay {3}. If you do, untap target permanent. |
| Dovin, Hand of Control | 2W/U | Legendary Planeswalker — Dovin | Artifact, instant, and sorcery spells your opponents cast cost {1} more to cast. [−1]: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls. Loyalty 5 |
| Marshmist Titan | 6B | Creature — Giant | This spell costs {X} less to cast, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) 4/5 |