Owing to his incredible age, his victory over various rivals, and his rank as a dragon sorcerer, Niv-Mizzet lacks the experience that no other Ravnicans possess, including sorceresses and weapons that have been lost in time.
There is also the mill option with Sphinxs Tutelage, which is not only great flavor but what Id consider the second win condition
In an era before Wizards began seeding deliberate Commander prospects into every set, these were some of the most powerful and unique choices on the table
Its a decent cantrip on its own thats card-neutral and offers some decent selection

Gallery and List of Craft Cards Clay-Fired Bricks / Cosmium Kiln Oteclan Landmark / Oteclan Levitator Spring-Loaded Sawblades / Bladewheel Chariot Unstable Glyphbridge / Sandswirl Wanderglyph Braided Net / Braided Quipu Inverted Iceberg / Iceberg Titan Lodestone Needle / Guidestone Compass The Enigma Jewel / Locus of Enlightenment Waterlogged Hulk / Watertight Gondola Altar of the Wretched / Wretched Bonemass Tithing Blade / Consuming Sepulcher Visage of Dread / Dread Osseosaur Dire Flail / Dire Blunderbuss Idol of the Deep King / Sovereign's Macuahuitl Ore-Rich Stalactite / Cosmium Catalyst Saheeli's Lattice / Mastercraft Raptor Jade Seedstones / Jadeheart Attendant Kaslem's Stonetree / Kaslem's Strider Master's Guide-Mural / Master's Manufactory Tetzin, Gnome Champion / The Golden-Gear Colossus Throne of the Grim Captain / The Grim Captain Eye of Ojer Taq / Apex Observatory Paleontologist's Pick-Axe / Dinosaur Headdress Sunbird Standard / Sunbird Effigy Best Craft Cards #9

Does Replicate Count as Casting