Oscar Orcus (Arifureta Sekai Saikyou) is a genius master of craftsmanship magic, having created numerous legendary magical and alchemical artifacts.
Having perfected his cratsmanship magic to uttermost perfection, Hajime Nagumo (Arifureta Sekai Saikyou) has surpassed Oscar in craftsmanship magic, creating the most powerful Artifacts that make full use of all the Ancient Magics.
Donner & Schalg (Arifureta Sekai Saikyou) Hajime's first masterpiece, a pair of revolvers powered by Electricity Magic have power surpassed an anti-tank rifle.
Schlagen (Arifureta Sekai Saikyou) Hajime's second masterpiece, a rifle powered by Electricity Magic, has twenty times greater firepower than Donner and Schlag combined.
Shea Haulia's Drucken (Arifureta Sekai Saikyou) Hajime's sixth masterpiece, a massively powerful war hammer powered by Vibration Magic, able to decimate entire armies of demons and monsters.
Shizuku Yaegashi's Tsumehirameki (Arifureta Sekai Saikyou) is Hajime's seventh masterpiece, a katana powered by Air Magic, it has supreme sharpness and strength to cut through anything.
As Dwarves of Nidavellir, Brok and Sindri (God of War 2018) are able to merge their own magic with their nigh incredible crafting skills to create armaments and armor from even the most impossible substances, including transferring the electrical breath of a dragon directly from a tooth to a nearby arrow in seconds.
Hephaestus/Vulcan (Greco-Roman Mythology) was the greatest craftsman in all of Olympus.
The Dwarves of Nidavellir (Marvel Comics) merge their magic with their craftsmanship to create armaments of untold power.
Dinvaya Lanalei, as a cleric of Brigh tied to the Artifice Domain (Pathfinder), has power over creating and destroying various constructs with her magic alone.