13 cards where the cards have Phyrexian mana and the mana value = 1

Captive Weird // Compleated Conjurer (March of the Machine #49)
Captive Weird // Compleated Conjurer (March of the Machine #49)
Corrosive Gale (New Phyrexia #107)
Gitaxian Probe (New Phyrexia #35)
Gut Shot (Modern Masters 2015 #117)
Hex Parasite (New Phyrexia #137)
Marrow Shards (New Phyrexia #15)
Mental Misstep (New Phyrexia #38)
Mutagenic Growth (Modern Masters 2015 #149)
Noxious Revival (New Phyrexia #118)
Postmortem Lunge (New Phyrexia #70)
Skrelv, Defector Mite (Phyrexia: All Will Be One #33)
Surgical Extraction (Double Masters 2022 #94)
Tarkir Duneshaper // Burnished Dunestomper (March of the Machine #43)
Tarkir Duneshaper // Burnished Dunestomper (March of the Machine #43)

In the blink of an eye, they strode from deep snow to the end of this search.