M:tG card similarity search
3UU · Enchantment
Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell. (Mana cost includes color.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Lapis Lazuli Talisman | 2 | Artifact | Whenever a player casts a blue spell, you may pay {3}. If you do, untap target permanent. |
| 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. |
| 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. |
| Rushwood Legate | 2G | Creature — Dryad | If an opponent controls an Island and you control a Forest, you may cast this spell without paying its mana cost. 2/1 |
| Hematite Talisman | 2 | Artifact | Whenever a player casts a red spell, you may pay {3}. If you do, untap target permanent. |
| Crystal Rod | 1 | Artifact | Whenever a player casts a blue spell, you may pay {1}. If you do, you gain 1 life. |
| Baleful Mastery | 3B | Instant | You may pay {1}{B} rather than pay this spell's mana cost. If the {1}{B} cost was paid, an opponent draws a card. Exile target creature or planeswalker. |
| Onyx Talisman | 2 | Artifact | Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent. |
| 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. |
| A-Fires of Invention | 4R | Enchantment | You can cast spells only during your turn and you can cast no more than two spells each turn. You may cast spells with mana value less than or equal to the number of lands you control without paying their mana costs. |