Biomass Mutation

Biomass Mutation from Duskmourn: House of Horror Commander. Rare MTG card for deck building and Commander. View rules, legality, and compare prices from multiple sellers.

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Commander Legal
Duel Legal
Legacy Legal
Modern Legal
Oathbreaker Legal
Penny Legal
Pioneer Legal
Vintage Legal
Card Set Duskmourn: House of Horror Commander  
Card Type Instant
Rarity   Rare  
Mana Cost
Card Text Creatures you control have base power and toughness X/X until end of turn.
Flavor Text "A regression to ancient forms? A glimpse of future evolutions? Or a fleeting alteration of the present?"
—Vorel of the Hull Clade
Card Number #214
Artist Dan Murayama Scott
Card Languages English , French , German , Italian , Japanese , Spanish
Frame Version 2015
Border Color Black
EDHREC Rank 4674
EDHREC Saltiness 0.09
Reprint? Yes
Is Promo? No
Oversized? No
Joke Card? No
In Starter? No
Time Shifted? No
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eBay

Biomass Mutation | Magic the Gathering MTG | Duskmourn Commander DSC | NM

$1.45

Price History

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Card Rulings

2013-01-24

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).

2013-01-24

Choosing 0 as the value for X will likely cause creatures you control to become 0/0 and be put into the graveyard.