M:tG card similarity search
5UU · Instant
This spell costs {3} less to cast if an opponent has seven or more cards in their graveyard. Draw four cards.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Kethis, the Hidden Hand | WBG | Legendary Creature — Elf Advisor | Legendary spells you cast cost {1} less to cast. Exile two legendary cards from your graveyard: Until end of turn, each legendary card in your graveyard gains "You may play this card from your graveyard." 3/4 | 
| Siren Reaver | 3U | Creature — Siren Pirate | Raid — This spell costs {1} less to cast if you attacked this turn. Flying 3/2 | 
| Nightscape Familiar | 1B | Creature — Zombie | Blue spells and red spells you cast cost {1} less to cast. {1}{B}: Regenerate Nightscape Familiar. 1/1 | 
| Vanquish the Horde | 6WW | Sorcery | This spell costs {1} less to cast for each creature on the battlefield. Destroy all creatures. | 
| Hearth Elemental | 5R | Creature — Elemental | This spell costs {X} less to cast, where X is the number of cards in your graveyard that are instant cards, sorcery cards, and/or have an Adventure. 4/5 | 
| Foundry Inspector | 3 | Artifact Creature — Construct | Artifact spells you cast cost {1} less to cast. 3/2 | 
| Kindly Cognician | 1U | Artifact Creature — Cyborg Artificer | Spells you cast that refer to artifacts or Contraptions in their rules text cost {1} less to cast. 1/3 | 
| Grand Arbiter Augustin IV | 2WU | Legendary Creature — Human Advisor | White spells you cast cost {1} less to cast. Blue spells you cast cost {1} less to cast. Spells your opponents cast cost {1} more to cast. 2/3 | 
| Killian, Ink Duelist | WB | Legendary Creature — Human Warlock | Lifelink Menace (This creature can't be blocked except by two or more creatures.) Spells you cast that target a creature cost {2} less to cast. 2/2 | 
| Mana Matrix | 6 | Artifact | Instant and enchantment spells you cast cost up to {2} less to cast. |