First printed in Phyrexia: All Will Be One Commander (2023)
All 2 prints
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Phyrexia: All Will Be One Commander (ONC) #12, 2023
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Phyrexia: All Will Be One Commander (ONC) #50, 2023
Phyresis Outbreak 
Sorcery
Each opponent gets a poison counter. Then each creature your opponents control gets -1/-1 until end of turn for each poison counter its controller has.
"It is amusing that the fleshlings believe we are at war. In truth, they are nothing but scurrying pests to be eradicated."
—Azax-Azog, the Demon Thane
- Illustrated by
- Matthew G. Lewis
Legality
- Legal in
- Legacy, Vintage, Commander, Duel Commander, Tiny Leaders, Oathbreaker
- Not legal in
- Standard, Pioneer, Modern, Pauper, Future Standard, Historic, Timeless, Alchemy, Penny Dreadful, Premodern, Old School 93/94, Gladiator, Pauper Commander, PreDH, Brawl, Standard Brawl, Competitive Brawl
Ruling (1)
- The amount a creature's power and toughness are reduced is determined only once, at the time Phyresis Outbreak resolves. It won't change if that creature's controller later gets more poison counters or if another player takes control of it later in the same turn.
Prices
MTGO price: 6.21 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
3 combos, the most popular first:
- Each opponent loses the game: Phyresis Outbreak + Storm King's Thunder
- Each opponent loses the game: Anhelo, the Painter + Phyresis Outbreak + Repeated Reverberation + Twinning Staff
- Each opponent loses the game: Anhelo, the Painter + Howl of the Horde + Phyresis Outbreak + Twinning Staff
