Biomass Mutation (PIP #475)

Biomass Mutation is a rare printing from Fallout (PIP #475), a Instant. Illustrated by Nicholas Gregory.
Card text
Creatures you control have base power and toughness X/X until end of turn.
Vault 87's Evolutionary Experimentation Program exposed subjects to an airborne version of FEV. Rapid physical enhancements accompanied sharp mental regression, and the oldest mutants would become almost feral.
Details
| Mana cost | {X}{G/U}{G/U} |
|---|---|
| Type | Instant |
| Rarity | Rare |
| Set | Fallout (PIP) |
| Collector number | 475 |
| Artist | Nicholas Gregory |
| Released | 2024-03-08 |
Current price
As of 2026-10-19, Scryfall listed this printing at non-foil $0.36, foil $0.40 (USD). Prices change constantly, so check the live price before buying.
Buy Biomass Mutation on TCGplayer
Legality
| Standard | Not legal |
|---|---|
| Future Standard | Not legal |
| Historic | Not legal |
| Timeless | Not legal |
| Gladiator | Not legal |
| Pioneer | Legal |
| Modern | Legal |
| Legacy | Legal |
| Pauper | Not legal |
| Vintage | Legal |
| Penny Dreadful | Legal |
| Commander | Legal |
| Oathbreaker | Legal |
| Standard Brawl | Not legal |
| Brawl | Not legal |
| Competitive Brawl | Not legal |
| Alchemy | Not legal |
| Pauper Commander | Not legal |
| Duel Commander | Legal |
| Old School | Not legal |
| Premodern | Not legal |
| PrEDH | Not legal |
| TLR | Legal |
Keep exploring
Search the MTGBrew card database for more cards, or build a deck with the AI Deck Builder.
Rulings
- January 24, 2013 — Choosing 0 as the value for X will likely cause creatures you control to become 0/0 and be put into the graveyard.
- January 24, 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).
