Lots of different cards have made the build work over time
Izzet Spellslinger can utilize artifacts a TON of useful ways, such as: Ramp with them using cards like Galazeth Prismari and Inspiring Statuary Draw cards off them with cards like Shimmer Dragon and Universal Surveillance Deal damage with them using Ghirapur Aether Grid Turn them into finishers with Rise and Shine and Cyberdrive Awakener Fuel powerful Improvise, Metalcraft, and Affinity cards like Reality Heist and Whir of Invention Honestly, ignoring the other stuff Attractions do, "cast an instant/sorcery make an artifact" is literally worth including
In this way they are comparable to Rivers Rebuke (coming up next!) and they are strong enough to make the cut in some cases
The last card was another flavorful use of hybrid
The transformation doesn't necessarily make the card more powerful, but it maintains Flash, adds Double Strike, meaning you double the damage output in combat, and shifts the card draw from opponents drawing two cards per turn to combat damage dealt to players