47 cards where the mana value > 7 and the card types include “artifact” and the color identity ≤ RU

Aladdin's Lamp (Fourth Edition #291)
Aladdin's Ring (Ninth Edition #286)
Ancient Stone Idol (Murders at Karlov Manor Commander #222)
Angelic Rocket (Unstable #139)
Arcbound Overseer (Darksteel #99)
Blaster Hulk (Modern Horizons 3 Commander #55)
Blightsteel Colossus (Double Masters #235)
Bosh, Iron Golem (Commander 2021 #237)
Cityscape Leveler (The Brothers' War #233)
Colossus of Akros (Theros #214)
Colossus of Sardia (Masters Edition IV #193)
Darksteel Colossus (Foundations #671)
Darksteel Forge (Double Masters #248)
Darksteel Monolith (Commander Masters #743)
Depth Charge Colossus (The Brothers' War #78)
Draco (Planeshift #131)
Everythingamajig (Unstable #147f)
Excalibur, Sword of Eden (Assassin's Creed #72)
Fallaji Dragon Engine (The Brothers' War #159)
Gate Colossus (Foundations #675)
Gleemax (Unhinged #121)
Graaz, Unstoppable Juggernaut (Phyrexia: All Will Be One #229)
Hulking Metamorph (The Brothers' War #79)
Inkwell Leviathan (Double Masters #55)
Maelstrom Colossus (Commander Legends #322)
Marut (Commander Legends: Battle for Baldur's Gate #322)
Metalwork Colossus (Commander Masters #960)
Mox Lotus (Unhinged #124)
Mycosynth Golem (Fifth Dawn #137)
Nullstone Gargoyle (Ravnica: City of Guilds #266)
Omniclown Colossus // Pie-roclasm (Unfinity #116)
Phyrexian Triniform (Commander Masters #969)
Platinum Emperion (Ultimate Masters #233)
Portal to Phyrexia (The Brothers' War #240)
Possessed Portal (Fifth Dawn #144)
Scion of Draco (Modern Horizons 2 #234)
Skitterbeam Battalion (The Brothers' War #165)
Spotter Thopter (The Brothers' War #80)
Stratadon (Planeshift #135)
Su-Chi Cave Guard (The Brothers' War #249)
Suncrusher (Fifth Dawn #159)
Sundering Titan (Double Masters #292)
Teeka's Dragon (Mirage #320)
The Magic Mirror (Throne of Eldraine #51)
Triplicate Titan (Commander 2021 #79)
Walking Skyscraper (Kamigawa: Neon Dynasty #263)
Xanthic Statue (Weatherlight #163)

It is the moment of discovery, the triumph of the mind, and the end of these results.