Biomass Mutation
~$0.22 low · ~$1.44 high
Multicolor. Instant
Secrets of Strixhaven Commander #297 · Illustrated by Dan Murayama Scott
Secrets of Strixhaven Commander #297 · Illustrated by Dan Murayama ScottWhat is Biomass Mutation worth?
TCGplayer, eBay and Amazon links are affiliate links. We may earn a commission if you buy.
TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Creatures you control have base power and toughness X/X until end of turn.
"A regression to ancient forms? A glimpse of future evolutions? Or a fleeting alteration of the present?" —Vorel of the Hull Clade
Format legality
All 10 printings of Biomass Mutation
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
 Secrets of Strixhaven Commander soc #297· 2026rare· Cardmarket €0.18 | rare | $0.22 | No foil printing | €0.18 | |
 Duskmourn: House of Horror Commander dsc #214· 2024rare· Cardmarket €0.18 | rare | $0.25 | No foil printing | €0.18 | |
 Fallout pip #212· 2024rare· Cardmarket €0.17 · €0.30 foil | rare | $0.23 | $0.65 | €0.17€0.30 foil | |
 Fallout pip #475· 2024Extended Artrare· Cardmarket €0.24 · €0.35 foil | rare | $0.36 | $0.40 | €0.24€0.35 foil | |
 Fallout pip #740· 2024Surge Foilrare· Cardmarket €0.86 foil | rare | No non-foil printing | $0.87 | €0.86 foil | |
 Fallout pip #1003· 2024Extended ArtSurge Foilrare· Cardmarket €0.50 foil | rare | No non-foil printing | $1.44 | €0.50 foil | |
 The List plst #GTC-213· 2021rare· Cardmarket €0.22 | rare | $0.39 | No foil printing | €0.22 | |
 Commander 2021 c21 #209· 2021rare· Cardmarket €0.21 | rare | $0.22 | No foil printing | €0.21 | |
 Commander 2019 c19 #187· 2019rare· Cardmarket €0.17 | rare | $0.23 | No foil printing | €0.17 | |
 Gatecrash gtc #213· 2013rare· Cardmarket €0.31 · €0.76 foil | rare | $0.22 | $0.69 | €0.31€0.76 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Biomass Mutation
As an Amazon Associate we earn from qualifying purchases. We also take part in the TCGplayer (via Impact) and eBay Partner Network affiliate programs. Links to TCGplayer, eBay and Amazon are affiliate links: if you buy through them we may earn a commission at no extra cost to you. Cardmarket links are not affiliate links.
Card details
- First printed
- 2013
- Printings
- 10
- Mana value
- 2
- EDHREC rank
- #4,900 on EDHREC (Commander popularity)
- Artists
- Dan Murayama Scott, Nicholas Gregory
What the codes mean
The small print at the bottom of the Secrets of Strixhaven Commander card (#297).
0297 · SOC · R · EN
- 0297Collector number: this card's place in the set list.
- SOCSet code for Secrets of Strixhaven Commander
- RRare
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (2)
2013-01-24
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).
2013-01-24
Choosing 0 as the value for X will likely cause creatures you control to become 0/0 and be put into the graveyard.
Browse more: Secrets of Strixhaven Commander · all sets · search cards