19 cards where the full Oracle text includes “battalion —”

Bomber Corps (Ravnica Remastered #102)
Boros Elite (Ravnica Remastered #10)
Boros Mastiff (Dragon's Maze #1)
Boros Strike-Captain (Ravnica: Clue Edition #25)
Daring Skyjek (Gatecrash #9)
Firefist Striker (Ravnica: Clue Edition #134)
Firemane Avenger (Ravnica: Clue Edition #189)
Frontline Medic (Commander Legends: Battle for Baldur's Gate #693)
Garbage Elemental (Unstable #82f)
Legion Loyalist (Gatecrash #97)
Makeshift Battalion (Ravnica Remastered #22)
Nav Squad Commandos (Gatecrash #22)
Ordruun Veteran (Gatecrash #184)
Paladin Elizabeth Taggerdy (Fallout #114)
Sentinel Sarah Lyons (Fallout #118)
Sontaran General (Doctor Who #96)
Tajic, Blade of the Legion (Dominaria United Commander #171)
Warmind Infantry (Gatecrash #111)
Wojek Halberdiers (Gatecrash #208)

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