57 cards where the text includes “create a token” and the colors is U

Artificer Class (Commander Legends: Battle for Baldur's Gate #663)
A-Thousand-Faced Shadow (Kamigawa: Neon Dynasty #A-86)
Back from the Brink (Innistrad #44)
Blue Sun's Twilight (Phyrexia: All Will Be One #43)
Cackling Counterpart (Modern Masters 2017 #32)
Clone Legion (New Capenna Commander #215)
Copy Catchers (Murders at Karlov Manor Commander #20)
Court of Vantress (Wilds of Eldraine Commander #22)
Dance of Many (Masters Edition III #34)
Echo Storm (March of the Machine Commander #221)
Elminster's Simulacrum (Commander Legends: Battle for Baldur's Gate #68)
Endless Evil (Commander Legends: Battle for Baldur's Gate #665)
Esoteric Duplicator (The Big Score #5)
Extravagant Replication (New Capenna Commander #25)
Faerie Artisans (Commander Masters #92)
Fated Infatuation (Born of the Gods #39)
Followed Footsteps (Conspiracy: Take the Crown #111)
Genestealer Patriarch (Warhammer 40,000 Commander #22)
Haunting Imitation (Crimson Vow Commander #13)
Hour of Eternity (Midnight Hunt Commander #102)
Hunted by The Family (Doctor Who #46)
Irenicus's Vile Duplication (Commander Legends: Battle for Baldur's Gate #78)
Jace, Mirror Mage (Commander Masters #852)
Leonardo da Vinci (Assassin's Creed #20)
March of Progress (Magic Online Promos #105654)
Mechanized Production (Murders at Karlov Manor Commander #109)
Mirage Mockery (Phyrexia: All Will Be One Commander #22)
Mirrorhall Mimic // Ghastly Mimicry (Innistrad: Crimson Vow #68)
Mirrorhall Mimic // Ghastly Mimicry (Innistrad: Crimson Vow #68)
Mirror Match (Commander 2015 #13)
Mirror Mockery (Dragons of Tarkir #62)
Mist-Syndicate Naga (Modern Horizons #58)
Mythos of Illuna (Ikoria: Lair of Behemoths #58)
Necroduality (Innistrad: Crimson Vow #70)
Orvar, the All-Form (Kaldheim #70)
Osgood, Operation Double (Doctor Who #191)
Quantum Misalignment (Doctor Who #52)
Quasiduplicate (Ravnica Remastered #55)
Replication Specialist (Kamigawa: Neon Dynasty #76)
Replication Technique (Commander 2021 #31)
Rite of Replication (Commander 2021 #128)
Saheeli's Artistry (March of the Machine Commander #234)
Schema Thief (March of the Machine Commander #24)
See Double (March of the Machine #77)
Self-Reflection (The Lost Caverns of Ixalan #74)
Specimen Collector (Modern Horizons 2 #64)
Stolen Identity (New Capenna Commander #233)
Sublime Epiphany (Core Set 2021 #74)
Supplant Form (Fate Reforged #54)
Tawnos, Solemn Survivor (The Brothers' War Commander #3)
Tempt with Reflections (Commander 2013 #60)
The Eleventh Hour (Doctor Who #41)
Theoretical Duplication (Commander 2021 #34)
Thousand-Faced Shadow (Kamigawa: Neon Dynasty #86)
Three Steps Ahead (Outlaws of Thunder Junction #75)
Trickster's Talisman (Adventures in the Forgotten Realms #79)
Vesuvan Duplimancy (Dominaria United #73)
Worldwalker Helm (The Big Score #7)

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