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Erratic Mutation

Blue

3 printings listed in our catalog, from newest to oldest.

Erratic Mutation, Time Spiral Remastered printing
Time Spiral Remastered TSR · No. 67 2021-03-19

Card text

{2}{U}
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.
EDHREC rank #29898 Common Not on the Reserved List
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The 3 printings

All, with their prices ↓

Standard ∅ Not legal
Pioneer ∅ Not legal
Modern ✓ Legal
Legacy ✓ Legal
Vintage ✓ Legal
Pauper ✓ Legal
Commander ✓ Legal
Oathbreaker ✓ Legal
Brawl ∅ Not legal
Historic ∅ Not legal
Timeless ∅ Not legal
Alchemy ∅ Not legal
Explorer ∅ Not legal
Gladiator ∅ Not legal
Penny ✓ Legal
Duel ✓ Legal

Official rulings

2 rulings · in English, source Scryfall

If a card in a player's library has {X} in its mana cost, X is considered to be 0.

2021-03-19 · Wizards of the Coast

You reveal cards and the creature gets +X/-X all while Erratic Mutation is resolving. Nothing can happen in between, and no player can take actions.

2021-03-19 · Wizards of the Coast

All printings