Biomass Mutation
C19Commander 2019/#187/2019RareReprint
Colour IDMV 2
Current paper retail
Cardmarket€0.18
ManaPool$0.15
Card Kingdom$0.49
TCGplayer$0.24
Paper retail history (USD)
3 providers
Latest $0.49High $0.49Low $0.49▲ 0.0%
Market and collecting
Market overview
$0.24TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 4.3%30d▲ 4.3%90d▲ 4.3%
90d high
$0.25
90d low
$0.23
Paper printings priced
10
Currently 5th
Cheapest paper printing
$0.21
Gatecrash
- Up 4.3% over the last 30 days on TCGplayer.
- Currently 4% below its 90 day high of $0.25.
- This printing is the 5th cheapest paper printing currently priced (10 priced in total).
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
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Play
Compare printings (10 priced)
Gameplay and rules
Instant
Creatures you control have base power and toughness X/X until end of turn.
Card capabilities
Instant
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (2)
wotc24 Jan 2013
Biomass Mutation overwrites any effects that set the power and/or toughness of a creature you control to a specific value. Effects that modify power and/or toughness but don't set them to a specific value (like the one created by Giant Growth), power/toughness changes from counters, and effects that switch a creature's power and toughness will continue to apply. For example, say you control a 1/1 creature that's getting +4/+2 from an Aura, has a +1/+1 counter on it, and is affected by an effect that switches its power and toughness. This creature is 4/6. If you cast Biomass Mutation with X equal to 4, the creature would become 7/9 (4/4, +4/+2 from the Aura, +1/+1 from the counter, then switch power and toughness).
wotc24 Jan 2013
Choosing 0 as the value for X will likely cause creatures you control to become 0/0 and be put into the graveyard.
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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
About this card
Biomass Mutation
Biomass Mutation is an Instant, with mana cost {X}{G/U}{G/U} (mana value 2). Printed 10 times across MTG sets.
Format legality: Commander: legal, Modern: legal, Standard: not_legal, Pioneer: legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $0.24 (up 4.3% over 30 days).
Frequently asked
Biomass Mutation FAQ
How much is Biomass Mutation worth?
The current TCGplayer USD retail price for Biomass Mutation is $0.24. It is up 4.3% over the last 30 days. Over 90 days it has ranged from $0.23 to $0.25.
What is the cheapest printing of Biomass Mutation?
The cheapest currently priced paper printing is from Gatecrash at $0.21 on TCGplayer.
What is the most expensive printing of Biomass Mutation?
The most expensive currently priced paper printing is from Fallout at $1.53 on TCGplayer.
How many printings of Biomass Mutation are there?
Biomass Mutation has been printed 10 times in English paper sets that MTGPrices tracks.
What set was Biomass Mutation first printed in?
The earliest English paper printing that MTGPrices tracks is from GTC #213, released 2013-02-01.
What is the newest printing of Biomass Mutation?
The most recent English paper printing that MTGPrices tracks is from SOC #297, released 2026-04-24.
Is Biomass Mutation legal in Commander?
Yes, Biomass Mutation is currently legal in Commander per Scryfall's legality feed.
Is Biomass Mutation legal in Modern?
Yes, Biomass Mutation is currently legal in Modern per Scryfall's legality feed.