15 cards where the set is “mom” and the cards are Jumpstart cards

Essence of Orthodoxy (March of the Machine #323)
Phyrexian Pegasus (March of the Machine #324)
Seedpod Caretaker (March of the Machine #325)
Interdisciplinary Mascot (March of the Machine #326)
Referee Squad (March of the Machine #327)
Zephyr Winder (March of the Machine #328)
Injector Crocodile (March of the Machine #329)
Seer of Stolen Sight (March of the Machine #330)
Terror of Towashi (March of the Machine #331)
Axgard Artisan (March of the Machine #332)
Cragsmasher Yeti (March of the Machine #333)
Orthion, Hero of Lavabrink (March of the Machine #334)
Fairgrounds Trumpeter (March of the Machine #335)
Ruins Recluse (March of the Machine #336)
Surrak and Goreclaw (March of the Machine #337)

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