11 cards where the text includes “the monarch” and the rarity is equal to common and it’s legal in Pauper Commander

Azure Fleet Admiral (The Lost Caverns of Ixalan Commander #144)
Canal Courier (Conspiracy: Take the Crown #28)
Crimson Fleet Commodore (Commander Masters #211)
Crown-Hunter Hireling (Conspiracy: Take the Crown #50)
Entourage of Trest (Commander Masters #285)
Fall from Favor (Commander Masters #93)
Garrulous Sycophant (Conspiracy: Take the Crown #43)
Palace Sentinels (Commander Masters #48)
Staunch Throneguard (Commander Masters #412)
Thorn of the Black Rose (Commander Masters #190)
Throne Warden (Conspiracy: Take the Crown #25)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.