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 |
|---|---|---|---|
| Mind's Desire | 4UU | Sorcery | Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When you cast this spell, copy it for each spell cast before it this turn.) |
| Undying Flames | 4RR | Sorcery | Exile cards from the top of your library until you exile a nonland card. Undying Flames deals damage to any target equal to that card's mana value. Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.) |
| Dualcaster Mage | 1RR | Creature — Human Wizard | Flash When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy. 2/2 |
| A-Security Rhox | 2RG | Creature — Rhino Warrior | You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/5 |
| Security Rhox | 2RG | Creature — Rhino Warrior | You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/4 |
| Exit Through the Grift Shop | 2B | Sorcery | Yell "Who wants a souvenir?" and announce the name of a nonland card in your graveyard. Each player in an Un-game who can hear you may bid life. You start the bidding at 0. The high bidder loses life equal to the high bid. They copy the card and may cast the copy without paying its mana cost. If you didn't win the bid, you gain life equal to the high bid and create that many Treasure tokens. |
| Unexpected Conversion | 2U | Sorcery | Draw two cards. Then you may exile an instant or sorcery card from your hand. If you do, search your hand and library for any number of cards with the same name, exile them, then shuffle. Seek an instant or sorcery card for each card exiled from your hand this way. |
| Adarkar Unicorn | 1WW | Creature — Unicorn | {T}: Add {U} or {C}{U}. Spend this mana only to pay cumulative upkeep costs. 2/2 |
| Author of Shadows | 4B | Creature — Shade Warlock | When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 3/3 |
| Riku of Two Reflections | 2GUR | Legendary Creature — Human Wizard | Whenever you cast an instant or sorcery spell, you may pay {U}{R}. If you do, copy that spell. You may choose new targets for the copy. Whenever another nontoken creature enters the battlefield under your control, you may pay {G}{U}. If you do, create a token that's a copy of that creature. 2/2 |