Erratic Mutation
Instant
MMAModern Masters#42common
- Finishes
- Nonfoil · Foil
- Border
- black
- Frame
- 2003
- Pull rate
- ~1 in 10–141
- Illustrator
- Zoltan Boros & Gabor Szikszai
- Found in
- Modern Masters Draft Booster Pack
CommanderLegalModernLegalStandardNot legal
Format legality
Constructed
StandardNot legal
PioneerNot legal
ModernLegal
LegacyLegal
VintageLegal
PauperLegal
Commander
CommanderLegal
Pauper CommanderLegal
Duel CommanderLegal
PreDHLegal
OathbreakerLegal
Tiny LeadersLegal
Arena
AlchemyNot legal
HistoricNot legal
TimelessNot legal
BrawlNot legal
Standard BrawlNot legal
Competitive BrawlNot legal
GladiatorNot legal
Other
PremodernNot legal
Old SchoolNot legal
Penny DreadfulLegal
Future StandardNot legal
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.
Market · per finishspark updated 3h ago · prices as of 2026-08-30
TCGplayerFinish
Market
Δ 30D · Trend
Low
Buylist
Buy / Sell Gap
Buy
Nonfoil
$0.05
+25.0%
Since Feb 2024:H $0.10L $0.01$0.01
$0.01
$0.000% · normal spread
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Low: tcgplayer
Buylist: cardkingdom
Foil
$0.11
0.0%
Since Feb 2024:H $0.25L $0.04$0.05
$0.08
-$0.03-60% · buylist > ask
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Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.05· across 3 printings· you're viewing it
Rulings
2 · latest Mar 19, 2021
- WotCMar 19, 2021
If a card in a player's library has
in its mana cost, X is considered to be 0. - WotCMar 19, 2021
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.