Undercity Sewers (Borderless) (20) (PZA)
Non-Foil - NM
Not Buying
![Biomass Mutation [Duskmourn: House of Horror Commander]](https://cdn.shopify.com/s/files/1/0267/9501/6251/files/a16aa6bf-547f-4d95-82ca-79a4ee5b6212.png?v=1752855105)
Biomass Mutation [Duskmourn: House of Horror Commander]
| Set: | Duskmourn: House of Horror Commander |
| Type: | Instant |
| Rarity: | Rare |
| Cost: | XG/UG/U |
| Colors: | GU |
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