53 cards where the card types include “artifact” and the colors is R and (the card is available on Paper) and it’s legal in Future Standard

Barbed Batterfist (Phyrexia: All Will Be One #121)
Beamtown Beatstick (March of the Machine #131)
Bespoke Battlegarb (Wilds of Eldraine #122)
Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Bronzeplate Boar (Kamigawa: Neon Dynasty #135)
Churning Reservoir (Phyrexia: All Will Be One #127)
Concealed Weapon (Murders at Karlov Manor #117)
Diamond Pick-Axe (The Lost Caverns of Ixalan #143)
Dinotomaton (The Lost Caverns of Ixalan #144)
Dire Flail // Dire Blunderbuss (The Lost Caverns of Ixalan #145)
Dire Flail // Dire Blunderbuss (The Lost Caverns of Ixalan #145)
Dowsing Device // Geode Grotto (The Lost Caverns of Ixalan #146)
Dowsing Device // Geode Grotto (The Lost Caverns of Ixalan #146)
Dragonspark Reactor (Kamigawa: Neon Dynasty #137)
Dragonwing Glider (Phyrexia: All Will Be One #128)
Experimental Synthesizer (Kamigawa: Neon Dynasty #138)
Geistflame Reservoir (Innistrad: Midnight Hunt #142)
Glittering Stockpile (Outlaws of Thunder Junction Commander #167)
Goldfury Strider (The Lost Caverns of Ixalan #152)
Goldhound (Streets of New Capenna #108)
Hexgold Halberd (Phyrexia: All Will Be One #136)
Hoard Hauler (Streets of New Capenna #109)
Honeymoon Hearse (Innistrad: Crimson Vow #160)
Hotfoot Gnome (The Lost Caverns of Ixalan #154)
Idol of the Deep King // Sovereign's Macuahuitl (The Lost Caverns of Ixalan #155)
Idol of the Deep King // Sovereign's Macuahuitl (The Lost Caverns of Ixalan #155)
Ironhoof Boar (Kamigawa: Neon Dynasty #148)
Jackhammer (Streets of New Capenna #111)
Knife (Murders at Karlov Manor #134)
Krenko's Buzzcrusher (Murders at Karlov Manor #136)
Legion Extruder (The Big Score #12)
Lizard Blades (Kamigawa: Neon Dynasty #153)
Magmatic Galleon (The Lost Caverns of Ixalan #157)
Marauding Dreadship (March of the Machine #153)
Memory Vessel (The Big Score #13)
Mirran Banesplitter (March of the Machine #154)
Ogre-Head Helm (Kamigawa: Neon Dynasty #155)
Rabbit Battery (Kamigawa: Neon Dynasty #157)
Ramosian Greatsword (March of the Machine #159)
Red Herring (Murders at Karlov Manor #142)
Reinforced Ronin (Kamigawa: Neon Dynasty #158)
Saheeli's Lattice // Mastercraft Raptor (The Lost Caverns of Ixalan #164)
Saheeli's Lattice // Mastercraft Raptor (The Lost Caverns of Ixalan #164)
Sanguine Statuette (Innistrad: Crimson Vow #177)
Scrapyard Steelbreaker (Kamigawa: Neon Dynasty #160)
Shrapnel Slinger (Phyrexia: All Will Be One #148)
Simian Sling (Kamigawa: Neon Dynasty #163)
Sunfire Torch (The Lost Caverns of Ixalan #167)
Territory Forge (The Big Score #15)
Towashi Songshaper (Kamigawa: Neon Dynasty #167)
Twinshot Sniper (Kamigawa: Neon Dynasty #168)
Unruly Catapult (Wilds of Eldraine #156)
Unstoppable Ogre (Kamigawa: Neon Dynasty #169)
Urabrask's Anointer (Phyrexia: All Will Be One #152)
Urabrask's Forge (Phyrexia: All Will Be One #153)
Volatile Wanderglyph (The Lost Caverns of Ixalan #172)
Vulshok Splitter (Phyrexia: All Will Be One #156)

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