23 cards where the text includes “modular” and it’s legal in Commander

Arcbound Bruiser (Darksteel #94)
Arcbound Crusher (Planechase #105)
Arcbound Fiend (Darksteel #96)
Arcbound Hybrid (Darksteel #97)
Arcbound Javelineer (Modern Horizons 2 #2)
Arcbound Lancer (Darksteel #98)
Arcbound Mouser (Modern Horizons 2 #3)
Arcbound Overseer (Darksteel #99)
Arcbound Prototype (Modern Horizons 2 #4)
Arcbound Ravager (Modern Masters #198)
Arcbound Reclaimer (Darksteel #101)
Arcbound Shikari (Modern Horizons 2 #184)
Arcbound Slasher (Modern Horizons 2 #111)
Arcbound Slith (Planechase #106)
Arcbound Stinger (Modern Masters #199)
Arcbound Tracker (Modern Horizons 2 #112)
Arcbound Wanderer (Modern Masters #200)
Arcbound Whelp (Modern Horizons 2 #113)
Arcbound Worker (Modern Masters #201)
Blaster, Combat DJ // Blaster, Morale Booster (Transformers #8)
Blaster, Combat DJ // Blaster, Morale Booster (Transformers #8)
Power Depot (Modern Horizons 2 #251)
Scrapyard Recombiner (Modern Horizons #227)
Zabaz, the Glimmerwasp (Modern Horizons 2 #243)

Though this query has ended, its relics still slumber in New Argive.