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 |
|---|---|---|---|
| Endless Horizons | 3W | Enchantment | When Endless Horizons enters the battlefield, search your library for any number of Plains cards, exile them, then shuffle. At the beginning of your upkeep, you may put a card you own exiled with Endless Horizons into your hand. |
| Cackling Observer | 1BB | Creature — Imp | Flying When Cackling Observer enters the battlefield, target opponent reveals each nonland card in their hand. You choose one of those cards and exile it. When Cackling Observer leaves the battlefield, the exiled card's owner seeks a nonland card with lesser mana value than the exiled card. 3/1 |
| Stolen Strategy | 4R | Enchantment | At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells. |
| Bringer of the Black Dawn | 7BB | Creature — Bringer | You may pay {W}{U}{B}{R}{G} rather than pay this spell's mana cost. Trample At the beginning of your upkeep, you may pay 2 life. If you do, search your library for a card, then shuffle and put that card on top. 5/5 |
| A-Lier, Disciple of the Drowned | 3UU | Legendary Creature — Human Wizard | Spells can't be countered. As long as it's your turn, each instant and sorcery card in your graveyard has flashback. The flashback cost is equal to that card's mana cost. 3/4 |
| Richard Garfield, Ph.D. | 3UU | Legendary Creature — Human Designer | You may play cards as though they were other cards of your choice with the same mana cost. You can't choose the same card twice. (Mana cost includes color.) 2/2 |
| Azor's Gateway | 2 | Legendary Artifact | {1}, {T}: Draw a card, then exile a card from your hand. If cards with five or more different mana values are exiled with Azor's Gateway, you gain 5 life, untap Azor's Gateway, and transform it. |
| Melek, Izzet Paragon | 4UR | Legendary Creature — Weird Wizard | Play with the top card of your library revealed. You may cast instant and sorcery spells from the top of your library. Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy. 2/4 |
| Hand of Emrakul | 9 | Creature — Eldrazi | You may sacrifice four Eldrazi Spawn rather than pay this spell's mana cost. Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.) 7/7 |
| Cave-In | 3RR | Sorcery | You may exile a red card from your hand rather than pay this spell's mana cost. Cave-In deals 2 damage to each creature and each player. |