44 cards where the cards aren’t reprints and the mana cost is greater than or equal to {X}{X}

Walking Ballista (Aether Revolt #181)
Crackle with Power (Strixhaven: School of Mages #95)
Astral Cornucopia (Born of the Gods #157)
Hangarback Walker (Magic Origins #229)
Pest Infestation (Commander 2021 #65)
Sporocyst (Warhammer 40,000 Commander #98)
Neverwinter Hydra (Forgotten Realms Commander #41)
Mass Manipulation (Ravnica Allegiance #42)
Entreat the Angels (Avacyn Restored #20)
Doppelgang (Murders at Karlov Manor #198)
Exponential Growth (Strixhaven: School of Mages #130)
For the Common Good (Bloomburrow #172)
Dark Salvation (Eldritch Moon #87)
Progenitor Exarch (March of the Machine #32)
Cryptic Trilobite (Commander 2020 #21)
Another Round (Outlaws of Thunder Junction #1)
Decree of Justice (Scourge #8)
Chalice of the Void (Mirrodin #150)
Meathook Massacre II (Duskmourn: House of Horror #108)
Full Flowering (Commander 2019 #32)
Gelatinous Genesis (Rise of the Eldrazi #183)
Wildest Dreams (Kaladesh #174)
Omarthis, Ghostfire Initiate (Commander Masters #708)
Spinning Wheel Kick (Kamigawa: Neon Dynasty #207)
Aggressive Biomancy (Modern Horizons 3 Commander #69)
Doomsday Confluence (Doctor Who #67)
Orochi Hatchery (Champions of Kamigawa #266)
Extraordinary Journey (Wilds of Eldraine #48)
Bonfire of the Damned (Avacyn Restored #129)
Release the Gremlins (Aether Revolt #96)
Fall of the Titans (Oath of the Gatewatch #109)
Gluttonous Hellkite (Modern Horizons 3 Commander #73)
Entreat the Dead (Commander 2018 #15)
Valgavoth's Onslaught (Duskmourn: House of Horror #204)
Empty the Pits (Khans of Tarkir #72)
Hour of Eternity (Hour of Devastation #36)
Recall (Legends #70)
Quarantine Field (Battle for Zendikar #43)
Conflagrate (Time Spiral #151)
Builder's Bane (Mirage #160)
Meteor Shower (Ice Age #202)
Part Water (Legends #66)
It Came from Planet Glurg (Unfinity #169)
Hydradoodle (Unstable #112)

The arc of my blade has carved a path of light to the end of these results.