# 2026 Magic: The Gathering Secrets of Strixhaven #297

> Biomass Mutation, card number 297 from the Magic: The Gathering Secrets of Strixhaven Commander subset, an Instant that empowers creatures with variable stats.

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## Identity

- **Year**: 2026
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Secrets of Strixhaven
- **Card number**: #297
- **Product type**: TCG_CARD

## Description

Biomass Mutation, identified as card number 297 in the Magic: The Gathering Secrets of Strixhaven Commander subset, offers a dynamic tactical option for players seeking to control the board state. Released in 2026, this Instant card features a mana cost of {X}{G/U}{G/U}, allowing for flexible casting within green and blue mana identities. The card's primary effect grants creatures you control base power and toughness of X/X until the end of turn, enabling significant temporary boosts to your army's offensive or defensive capabilities. Illustrated by Dan Murayama Scott, the card captures the thematic essence of evolution and adaptation central to the Strixhaven setting. Collectors appreciate this rare card for its strategic depth and its place within the broader Commander subset, which caters to the casual, multiplayer format. Whether you are building a deck around creature synergies or simply enjoy the aesthetic of the Secrets of Strixhaven expansion, this card represents a solid addition to any Magic: The Gathering collection. Its unique flavor text, attributed to Vorel of the Hull Clade, adds narrative depth that resonates with fans of the lore. The card's design and mechanics make it a notable piece for enthusiasts of the trading card game.

## FAQ

### What does Biomass Mutation do in Magic: The Gathering?

Biomass Mutation is an Instant card that allows you to choose a value X and give creatures you control base power and toughness of X/X until the end of the turn.

### What is the mana cost of Biomass Mutation?

The mana cost for Biomass Mutation is {X}{G/U}{G/U}, requiring any two colors from green and blue in addition to a variable amount of mana based on the chosen X value.

### What rarity is Biomass Mutation in the Secrets of Strixhaven set?

In the Secrets of Strixhaven Commander subset, Biomass Mutation is printed as a rare card.

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Last verified: 2025-11-29.