M:tG card similarity search
3RR · Enchantment
Whenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it. That player may cast that card without paying its mana cost. Then they put all cards exiled with Possibility Storm on the bottom of their library in a random order.
| Name | Mana | Type | Text |
|---|---|---|---|
| Titan's Presence | 3 | Instant | As an additional cost to cast this spell, reveal a colorless creature card from your hand. Exile target creature if its power is less than or equal to the revealed card's power. |
| Watcher for Tomorrow | 1U | Creature — Human Wizard | Hideaway 4 (When this creature enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Watcher for Tomorrow enters the battlefield tapped. When Watcher for Tomorrow leaves the battlefield, put the exiled card into its owner's hand. 2/1 |
| Covenant of Minds | 4U | Sorcery | Reveal the top three cards of your library. Target opponent may choose to put those cards into your hand. If they don't, put those cards into your graveyard and draw five cards. |
| Chittering Rats | 1BB | Creature — Rat | When Chittering Rats enters the battlefield, target opponent puts a card from their hand on top of their library. 2/2 |
| Urza's Sylex | 3 | Legendary Artifact | {2}{W}{W}, {T}, Exile Urza's Sylex: Each player chooses six lands they control. Destroy all other permanents. Activate only as a sorcery. When Urza's Sylex is put into exile from the battlefield, you may pay {2}. If you do, search your library for a planeswalker card, reveal it, put it into your hand, then shuffle. |
| Sages of the Anima | 3GU | Creature — Elf Wizard | If you would draw a card, instead reveal the top three cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order. 3/4 |
| Colfenor's Urn | 3 | Artifact | Whenever a creature with toughness 4 or greater is put into your graveyard from the battlefield, you may exile it. At the beginning of the end step, if three or more cards have been exiled with Colfenor's Urn, sacrifice it. If you do, return those cards to the battlefield under their owner's control. |
| Emrakul, the Promised End | 13 | Legendary Creature — Eldrazi | This spell costs {1} less to cast for each card type among cards in your graveyard. When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn. Flying, trample, protection from instants 13/13 |
| Satyr Wayfinder | 1G | Creature — Satyr | When Satyr Wayfinder enters the battlefield, reveal the top four cards of your library. You may put a land card from among them into your hand. Put the rest into your graveyard. 1/1 |
| Momir Vig, Simic Visionary | 3GU | Legendary Creature — Elf Wizard | Whenever you cast a green creature spell, you may search your library for a creature card, reveal it, then shuffle and put that card on top. Whenever you cast a blue creature spell, reveal the top card of your library. If it's a creature card, put that card into your hand. 2/2 |