24 cards where (the card types include “creature” and the card types include “legendary”) and the cards have colorless identity and it’s legal in Commander

Clara Oswald (Doctor Who #9)
ED-E, Lonesome Eyebot (Fallout #131)
Emrakul, the Promised End (Eldritch Moon #6)
Emrakul, the World Anew (Modern Horizons 3 #6)
Faceless One (Commander Legends: Battle for Baldur's Gate #1)
Graaz, Unstoppable Juggernaut (Phyrexia: All Will Be One #229)
Hope of Ghirapur (Aether Revolt #154)
Karn, Legacy Reforged (March of the Machine: The Aftermath #49)
Karn, Silver Golem (Vintage Masters #270)
Kozilek, Butcher of Truth (Double Masters 2022 #2)
Kozilek, the Broken Reality (Modern Horizons 3 #10)
Kozilek, the Great Distortion (Commander Masters #2)
Liberator, Urza's Battlethopter (The Brothers' War #237)
Marvin, Murderous Mimic (Duskmourn: House of Horror #253)
Omarthis, Ghostfire Initiate (Commander Masters #708)
Syr Ginger, the Meal Ender (Wilds of Eldraine #252)
The Capitoline Triad (Assassin's Creed #1)
The Peregrine Dynamo (Dominaria United Commander #19)
The Prismatic Piper (Commander Masters #1)
Traxos, Scourge of Kroog (Dominaria United Commander #195)
Ulamog, the Ceaseless Hunger (Commander Masters #5)
Ulamog, the Defiler (Modern Horizons 3 #15)
Ulamog, the Infinite Gyre (Double Masters 2022 #3)
Zhulodok, Void Gorger (Commander Masters #704)

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