Card Codex

M:tG card similarity search

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
Traveler's Amulet 1Artifact {1}, Sacrifice Traveler's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Wanderer's Twig 1Artifact {1}, Sacrifice Wanderer's Twig: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Pyretic Hunter 4RCreature — Elemental Cat Reveal Pyretic Hunter as you draft it and note how many cards you've drafted this draft round, including Pyretic Hunter. Menace (This creature can't be blocked except by two or more creatures.) Pyretic Hunter enters the battlefield with X +1/+1 counters on it, where X is the highest number you noted for cards named Pyretic Hunter. 0/0
Whir of Invention XUUUInstant Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Onward 2RInstant Target creature gets +X/+0 until end of turn, where X is its power.
Rush of Blood 2RInstant Target creature gets +X/+0 until end of turn, where X is its power.
Hoverstone Pilgrim 5Artifact Creature — Golem Flying Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) {2}: Put target card from a graveyard on the bottom of its owner's library. 2/5
Invasion of Arcavios 3UUBattle — Siege (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Arcavios enters the battlefield, search your library, graveyard, and/or outside the game for an instant or sorcery card you own, reveal it, and put it into your hand. If you search your library this way, shuffle.
Stinging Study 4BInstant You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.
Lobotomy 2UBSorcery Target player reveals their hand, then you choose a card other than a basic land card from it. Search that player's graveyard, hand, and library for all cards with the same name as the chosen card and exile them. Then that player shuffles.
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