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Biomass Mutation [Gatecrash]
| Set: | Gatecrash |
| Type: | Instant |
| Cost: | {X}{G/U}{G/U} |
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
