Darksteel Forge - turns all artifacts you control indestructible. Although you do have Welding Jar already and Forge costs 9 mana. Unwinding Clock would also be great, with 4 mana all your artifacts untap on each untap phase (even on your opponents').Both of those would work great with the above mentioned Mycosynth Lattice.
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Ah, you're right about the Divining Top & Unexpected Results. The shuffle does happens before drawing the card. My bad!
Deck is really nice and gave me some inspiration aswell. One things points out though and it's Fasbond which is banned and restricted in most game formats mainly due to how overpowered card it is. Possibly change it over to something more acceptable, like 2x Unexpected results and 2x Urban Evolution. Unexpected Results possibly allows you to play Progenitus without manacost and at worst it still gives you an extra land.Urban Evolution also allows you to play extra land on your turn and works as Draw 3 cards.Sensei's Divining Top would also work great with Unexpected Results, allowing you to look at top 3 cards and rearranging them to your liking.
With the amount of mill cards already in the deck, I'd suggest to consider replacing Shriekgeists with Jace's Phantasms for that extra meat.
Can't do with Time Walk either as it's a sorcery, not an instant.
In theory the Time Walks could be switched to Time Warps if you don't have ~3000$ to spend.
Ah, remember that the 100 cards -includes- the commander. Currently you have one card too many.
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