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 |
|---|---|---|---|
| Grown from the Stump | Sorcery | Place exactly two cards named Hydra Head onto the battlefield from the Hydra's graveyard. If you can't, reveal cards from the top of the Hydra's library until you reveal a Head card. Put that card onto the battlefield and the rest into the Hydra's graveyard. | |
| Sphinx of Uthuun | 5UU | Creature — Sphinx | Flying When Sphinx of Uthuun enters the battlefield, reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard. 5/6 |
| Keeper of the Secret Lair | 1U | Legendary Creature — Merfolk Rogue | Flash You may cast Secret Lair spells as though they had flash. Secret Lair spells you cast cost {1} less to cast. 2/1 |
| Leonin Arbiter | 1W | Creature — Cat Cleric | Players can't search libraries. Any player may pay {2} for that player to ignore this effect until end of turn. 2/2 |
| Aerial Caravan | 4UU | Creature — Human Soldier | Flying {1}{U}{U}: Exile the top card of your library. Until end of turn, you may play that card. (Reveal the card as you exile it.) 4/3 |
| Tenacious Underdog | 1B | Creature — Human Warrior | Blitz—{2}{B}{B}, Pay 2 life. (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.) You may cast Tenacious Underdog from your graveyard using its blitz ability. 3/2 |
| Jeska's Will | 2R | Sorcery | Choose one. If you control a commander as you cast this spell, you may choose both instead. • Add {R} for each card in target opponent's hand. • Exile the top three cards of your library. You may play them this turn. |
| Elven Chorus | 3G | Enchantment | You may look at the top card of your library any time. You may cast creature spells from the top of your library. Creatures you control have "{T}: Add one mana of any color." |
| Whispers of Emrakul | 1B | Sorcery | Target opponent discards a card at random. Delirium — If there are four or more card types among cards in your graveyard, that player discards two cards at random instead. |
| Thunderherd Migration | 1G | Sorcery | As an additional cost to cast this spell, reveal a Dinosaur card from your hand or pay {1}. Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. |