As a side note I've been playing with a couple of variations on this deck exploring different wincons and fun things you can do. Right now I'm looking into seeing if I can flip it totally and replace the clones with token generators such as Mirrodin Besieged then pumping huge X spells such as Crackle with Power.

X spells get a lot stronger when you don't have a lot of blue players in your playgroup. So it just depends

Query: Why Mind Spring when there are instant-speed options like Pull from Tomorrow, Stroke of Genius, or Blue Sun's Zenith? I run Blue Sun's in my own Izzet artifact deck, Assembling the Legacy (Which, to be perfectly fair, I'm currently in the process of redesigning, so...)

Either way, I love the deck, always like to see other artifact players floating around the Interwebs! One card I would suggest is Saheeli's Directive, which should've come in the Saheeli precon (It's literally the reason I bought that precon!).

ArantirTheDestroyer excellent point! My main reasoning is sadly you can't activate planeswalker abilities on other people's turns, so if you activate the spell on a separate turn you lose the advantage of saheeli and will only be able to cast it normally for an x cost of 2-5 while basically holding up your mana, and usually it's a lot more worth it to draw 10+ cards and see if you can't pull together a win or a dominant board state.

However I constantly think about Stroke of Genius if nothing because it actually becomes a win condition or player kill when you go infinite or if a player gets too greedy with their drawing