M:tG card similarity search
4UU · Enchantment
When Signature Spells enters the battlefield, seek two instant and/or sorcery cards with mana value 3, then exile them. At the beginning of your upkeep, you may copy a card exiled with Signature Spells. You may cast the copy without paying its mana cost.
| Name | Mana | Type | Text |
|---|---|---|---|
| Sickening Shoal | XBB | Instant — Arcane | You may exile a black card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets -X/-X until end of turn. |
| Princess Luna | Legendary Creature — Alicorn | Flying When this creature transforms into Princess Luna, choose up to six cards you own from outside the game with a moon in their art, then exile those cards. As long as those cards remain exiled, you may cast them, and your friends may cast them with your permission. (Gifts are appreciated.) 4/4 | |
| Nahiri, Forged in Fury | 4RW | Legendary Creature — Kor Artificer | Affinity for Equipment (This spell costs {1} less to cast for each Equipment you control.) Whenever an equipped creature you control attacks, exile the top card of your library. You may play that card this turn. You may cast Equipment spells this way without paying their mana costs. 5/4 |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Unblinking Observer | 1U | Creature — Homunculus | {T}: Add {U}. Spend this mana only to pay a disturb cost or cast an instant or sorcery spell. 2/1 |
| Submerge | 4U | Instant | If an opponent controls a Forest and you control an Island, you may cast this spell without paying its mana cost. Put target creature on top of its owner's library. |
| Skyclave Apparition | 1WW | Creature — Kor Spirit | When Skyclave Apparition enters the battlefield, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less. When Skyclave Apparition leaves the battlefield, the exiled card's owner creates an X/X blue Illusion creature token, where X is the mana value of the exiled card. 2/2 |
| Kayla's Kindling | 3RR | Enchantment | When Kayla's Kindling enters the battlefield, it deals 2 damage to any target. At the beginning of your upkeep, draft a card from Kayla's Kindling's spellbook and exile it. Until end of turn, you may cast that card. |
| Junkyard Scrapper | 2R | Creature — Goblin Artificer | Whenever a nontoken artifact enters the battlefield under your control, exile a random nonland artifact card with lesser mana value from your library. You may cast that card until the end of your next turn. 3/3 |
| Refreshing Rain | 3G | Instant | If an opponent controls a Swamp and you control a Forest, you may cast this spell without paying its mana cost. Target player gains 6 life. |