59 cards where the card types include “creature” and it’s legal in Commander and (the power = 10 or the power = 11 or the power = 12 or the power = 13 or the power = 14 or the power >= 15)

Ghalta, Primal Hunger (Commander Masters #292)
Kozilek, Butcher of Truth (Double Masters 2022 #2)
Artisan of Kozilek (Commander Masters #801)
Etali, Primal Conqueror // Etali, Primal Sickness (March of the Machine #137)
Etali, Primal Conqueror // Etali, Primal Sickness (March of the Machine #137)
Blightsteel Colossus (Double Masters #235)
Ulamog, the Infinite Gyre (Double Masters 2022 #3)
Ulamog, the Ceaseless Hunger (Commander Masters #5)
Void Winnower (Battle for Zendikar #17)
It That Betrays (Commander Masters #805)
Apex Devastator (Commander Legends #217)
Apex Altisaur (The Lost Caverns of Ixalan Commander #232)
Kozilek, the Great Distortion (Commander Masters #2)
Metalwork Colossus (Commander Masters #960)
Ghalta and Mavren (March of the Machine #225)
Emrakul, the Promised End (Eldritch Moon #6)
Desolation Twin (Commander 2021 #82)
Ghalta, Stampede Tyrant (The Lost Caverns of Ixalan #185)
The Ur-Dragon (Commander Masters #361)
Arixmethes, Slumbering Isle (Double Masters #189)
Titanoth Rex (Ikoria: Lair of Behemoths #174)
Earthquake Dragon (Commander Legends: Battle for Baldur's Gate #228)
Ancient Stone Idol (Murders at Karlov Manor Commander #222)
Breaker of Armies (Battle for Zendikar #3)
Worldspine Wurm (Return to Ravnica #140)
Yargle and Multani (March of the Machine #256)
Darksteel Colossus (Magic 2010 #208)
Impervious Greatwurm (Double Masters 2022 #152)
Flayer of Loyalties (Commander Masters #715)
The Tarrasque (Adventures in the Forgotten Realms #207)
Gigantosaurus (Core Set 2019 #185)
Daemogoth Titan (Strixhaven: School of Mages #174)
Progenitus (Modern Masters #182)
Leveler (Mirrodin #195)
Primeval Protector (Neon Dynasty Commander #124)
Colossus of Akros (Theros #214)
Primeval Spawn (Dominaria United Commander #13)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Hierophant Bio-Titan (Warhammer 40,000 Commander #92)
Grothama, All-Devouring (Battlebond #71)
Nyxborn Behemoth (Commander Masters #742)
Phyrexian Dreadnought (Mirage #315)
Ghoultree (Dark Ascension #115)
Bearer of the Heavens (Journey into Nyx #89)
Nessian Boar (Theros Beyond Death #181)
Death's Shadow (Double Masters #82)
Rust Goliath (The Brothers' War #204)
Ludevic's Test Subject // Ludevic's Abomination (Innistrad #64)
Ludevic's Test Subject // Ludevic's Abomination (Innistrad #64)
Krosan Cloudscraper (Murders at Karlov Manor Commander #175)
Doomgape (Duel Decks: Izzet vs. Golgari #65)
Grim Giganotosaurus (Jurassic World Collection #11)
Nova Chaser (Lorwyn #187)
Lord of Tresserhorn (Masters Edition #149)
Etched Monstrosity (Modern Masters 2015 #210)
Denizen of the Deep (Dominaria Remastered #47)
Supreme Exemplar (Morningtide #53)
Jokulmorder (Coldsnap #37)
Polar Kraken (Masters Edition #44)
Leviathan (Time Spiral Timeshifted #23)
Skyshroud Behemoth (Nemesis #116)

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