Card Codex

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17 May 2024: Card library updated.

Erratic Mutation

2U · Instant

Choose target creature. Reveal cards from the top of your library until you reveal a nonland card. That creature gets +X/-X until end of turn, where X is that card's mana value. Put all cards revealed this way on the bottom of your library in any order.

Similar cards

Color identity:
NameManaTypeText
Psychic Theft 1USorcery Target player reveals their hand. You choose an instant or sorcery card from it and exile that card. You may cast that card for as long as it remains exiled. At the beginning of the next end step, if you haven't cast the card, return it to its owner's hand.
Beseech the Mirror 1BBBSorcery Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Search your library for a card, exile it face down, then shuffle. If this spell was bargained, you may cast the exiled card without paying its mana cost if that spell's mana value is 4 or less. Put the exiled card into your hand if it wasn't cast this way.
Narset Transcendent 2WULegendary Planeswalker — Narset [+1]: Look at the top card of your library. If it's a noncreature, nonland card, you may reveal it and put it into your hand. [−2]: When you next cast an instant or sorcery spell from your hand this turn, it gains rebound. (Exile the spell as it resolves. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.) [−9]: You get an emblem with "Your opponents can't cast noncreature spells." Loyalty 6
Spellbound Dragon 3URCreature — Dragon Flying Whenever Spellbound Dragon attacks, draw a card, then discard a card. Spellbound Dragon gets +X/+0 until end of turn, where X is the discarded card's mana value. 3/5
Strutting Turkey 3WHost Creature — Bird When this creature enters the battlefield, exile target creature card with mana value 2 or less from your graveyard. If it has augment, combine it with a host you control. Otherwise, put it onto the battlefield. 2/2
Cemetery Illuminator 1UUCreature — Spirit Flying Whenever Cemetery Illuminator enters the battlefield or attacks, exile a card from a graveyard. You may look at the top card of your library any time. Once each turn, you may cast a spell from the top of your library if it shares a card type with a card exiled with Cemetery Illuminator. 2/3
Kindred Denial 2UUInstant Counter target spell. Seek a card with the same mana value as that spell.
Custodi Peacekeeper 2WCreature — Human Cleric Reveal Custodi Peacekeeper as you draft it and note how many cards you've drafted this draft round, including Custodi Peacekeeper. {W}, {T}: Tap target creature with power less than or equal to the highest number you noted for cards named Custodi Peacekeeper. 2/3
Run Aground 3UInstant Put target artifact or creature on top of its owner's library.
Lurrus of the Dream-Den 1W/BW/BLegendary Creature — Cat Nightmare Companion — Each permanent card in your starting deck has mana value 2 or less. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) Lifelink Once during each of your turns, you may cast a permanent spell with mana value 2 or less from your graveyard. 3/2
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