Current paper retail
Card Kingdom$0.35
Cardmarket€0.07
ManaPool$0.15
TCGplayer$0.05
MTGO (Cardhoarder)
retail$0.04 tix
90-day paper retail (USD)
3 providers
Erratic Mutation
CommonColour IDMV 3
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.
Card capabilities
Instant
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Other printings
2 other English printingsEarliest 2013-06-07Newest 2021-03-19Cheapest priced $0.05 in TSR
Rulings (2)
wotc19 Mar 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.
wotc19 Mar 2021
If a card in a player's library has {X} in its mana cost, X is considered to be 0.
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Ranked by shared capabilities, colour identity, mana value and type — never by strategic judgement.
