36 cards where the set is “mat” and the cards have an extended art frame

Arni Metalbrow (March of the Machine: The Aftermath #159)
Ayara's Oathsworn (March of the Machine: The Aftermath #157)
Calix, Guided by Fate (March of the Machine: The Aftermath #165)
Danitha, New Benalia's Light (March of the Machine: The Aftermath #166)
Deification (March of the Machine: The Aftermath #151)
Drannith Ruins (March of the Machine: The Aftermath #185)
Jirina, Dauntless General (March of the Machine: The Aftermath #167)
Jolrael, Voice of Zhalfir (March of the Machine: The Aftermath #168)
Jolrael, Voice of Zhalfir (March of the Machine: The Aftermath #230)
Karn, Legacy Reforged (March of the Machine: The Aftermath #184)
Kiora, Sovereign of the Deep (March of the Machine: The Aftermath #170)
Leyline Immersion (March of the Machine: The Aftermath #161)
Metropolis Reformer (March of the Machine: The Aftermath #152)
Nahiri, Forged in Fury (March of the Machine: The Aftermath #171)
Nahiri's Resolve (March of the Machine: The Aftermath #172)
Narset, Enlightened Exile (March of the Machine: The Aftermath #173)
Nashi, Moon's Legacy (March of the Machine: The Aftermath #174)
Nissa, Resurgent Animist (March of the Machine: The Aftermath #162)
Niv-Mizzet, Supreme (March of the Machine: The Aftermath #175)
Ob Nixilis, Captive Kingpin (March of the Machine: The Aftermath #176)
Open the Way (March of the Machine: The Aftermath #163)
Pia Nalaar, Consul of Revival (March of the Machine: The Aftermath #177)
Plargg and Nassari (March of the Machine: The Aftermath #160)
Rebuild the City (March of the Machine: The Aftermath #178)
Rocco, Street Chef (March of the Machine: The Aftermath #179)
Samut, Vizier of Naktamun (March of the Machine: The Aftermath #180)
Sarkhan, Soul Aflame (March of the Machine: The Aftermath #181)
Sigarda, Font of Blessings (March of the Machine: The Aftermath #182)
Spark Rupture (March of the Machine: The Aftermath #153)
Tazri, Stalwart Survivor (March of the Machine: The Aftermath #154)
The Kenriths' Royal Funeral (March of the Machine: The Aftermath #169)
Training Grounds (March of the Machine: The Aftermath #155)
Tranquil Frillback (March of the Machine: The Aftermath #164)
Tyvar the Bellicose (March of the Machine: The Aftermath #183)
Urborg Scavengers (March of the Machine: The Aftermath #158)
Vesuvan Drifter (March of the Machine: The Aftermath #156)

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