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
Glittering Wish GWSorcery You may reveal a multicolored card you own from outside the game and put it into your hand. Exile Glittering Wish.
Night Dealings 2BBEnchantment Whenever a source you control deals damage to another player, put that many theft counters on Night Dealings. {2}{B}{B}, Remove X theft counters from Night Dealings: Search your library for a nonland card with mana value X, reveal it, put it into your hand, then shuffle.
Rashmi, Eternities Crafter 2GULegendary Creature — Elf Druid Whenever you cast your first spell each turn, reveal the top card of your library. You may cast it without paying its mana cost if it's a spell with lesser mana value. If you don't cast it, put it into your hand. 2/3
Tibalt's Trickery 1RInstant Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.
Cackling Observer 1BBCreature — Imp Flying When Cackling Observer enters the battlefield, target opponent reveals each nonland card in their hand. You choose one of those cards and exile it. When Cackling Observer leaves the battlefield, the exiled card's owner seeks a nonland card with lesser mana value than the exiled card. 3/1
Scrying Glass 2Artifact {3}, {T}: Choose a number greater than 0 and a color. Target opponent reveals their hand. If that opponent reveals exactly the chosen number of cards of the chosen color, you draw a card.
Martyr of Spores GCreature — Human Shaman {1}, Reveal X green cards from your hand, Sacrifice Martyr of Spores: Target creature gets +X/+X until end of turn. 1/1
Nessian Wanderer 1GCreature — Satyr Scout Constellation — Whenever an enchantment enters the battlefield under your control, look at the top three cards of your library. You may reveal a land card from among them and put that card into your hand. Put the rest on the bottom of your library in a random order. 1/3
Lay Bare the Heart 1BSorcery Target opponent reveals their hand. You choose a nonlegendary, nonland card from it. That player discards that card.
Oreskos Explorer 1WCreature — Cat Scout When Oreskos Explorer enters the battlefield, search your library for up to X Plains cards, where X is the number of players who control more lands than you. Reveal those cards, put them into your hand, then shuffle. 2/2
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