9 cards where the name includes “mill”

Armillary Sphere (Commander Legends #298)
Millennial Gargoyle (Battlebond #239)
Millicent, Restless Revenant (Crimson Vow Commander #1)
Millikin (Dominaria Remastered #231)
Millstone (Core Set 2019 #242)
Moldgraf Millipede (Duskmourn: House of Horror Commander #188)
Psemilla, Meletian Poet (Foundations Jumpstart #31)
The Millennium Calendar (The Lost Caverns of Ixalan #257)
Tread Mill (Unstable #208)

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