It would be really easy to just say Hey, run Sol Ring, Shadowspear or Commanders Plate
Card Draw Card draw, on the other hand, is a different beast entirely
On the other hand, if the build is centered around artifacts, Etherium Sculptor makes things run smoother, and you can use some key combinations like Nevinyrral's Disk + Darksteel Forge to get a one-sided board wipe or rely on the Thopter Foundry + Sword of the Meek to outvalue your opponents
Skyline Despot shines when opponents dont attack and you remain the monarch
That doesnt mean its just any Corona-branded paper you can buy by the pack
Since Arcane Barrage has X for its cost, you can pay any amount and that will become its casting cost