30 cards where the name includes “arms!”

Alliance of Arms (Commander 2011 #4)
Amzu, Swarm's Hunger (Ravnica: Clue Edition #24)
Anurid Swarmsnapper (Judgment #105)
Arms Dealer (Magic 2013 #120)
Arms Depot (Unstable #169)
Arms of Hadar (Commander Legends: Battle for Baldur's Gate #113)
Arms Race (The Brothers' War #126)
Arms Scavenger (Alchemy: Innistrad #35)
Call to Arms (Masters Edition III #4)
Charm School (Unglued #1)
Coat of Arms (Duel Decks: Mind vs. Might #58)
Earthen Arms (Battle for Zendikar #172)
Extra Arms (Scourge #92)
Farewell to Arms (Unhinged #56)
Farmstead (Summer Magic / Edgar #19)
Farmstead Gleaner (Modern Horizons #222)
Harm's Way (Duel Decks: Knights vs. Dragons #23)
Lay Down Arms (The Brothers' War #11)
Lu Bu, Master-at-Arms (Masters Edition III #108)
Master of Arms (Weatherlight #20)
Rot Farm Skeleton (Dragon's Maze #98)
Sergeant-at-Arms (Dominaria #32)
Strength of Arms (Double Masters #33)
Swarm Saboteur (Alchemy: Kamigawa #13)
Swarm Shambler (Zendikar Rising #207)
Swarm Surge (Battle for Zendikar #100)
Take Up Arms (Battlebond #111)
To Arms! (Ravnica Remastered #30)
Vampire Charmseeker (Battlebond #78)
Vraska, Swarm's Eminence (War of the Spark #236)

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