Biomass Mutation is a card from the Gatecrash set of Magic: The Gathering, classified as Unknown rarity. Currently valued at $0.28, this card sees occasional play in casual formats and has garnered interest among collectors due to its unique mechanics. While not a top-tier competitive option, it offers versatility in decks that focus on creature enhancement and synergy. Its market presence reflects the broader trends in the set, appealing to budget-conscious players and collectors alike.