If I had the cards I would totally tell you. Looking at it now I might drop mana leak or assert authority for 2 more thirst for knowledge to get through the deck, that way I'll probs draw out counters if needed but be more likely to get the shrap blasts.
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To speed things up a bit maybe try ornithopter? Or other 0 cost artifacts. That guy helps with turn 1 frogmites/chiss/anything. I like arcbound worker too, but thats usually a sac guy for a different deck. I'd probably at least lose the scales cos theyre not that aggressive, even if they are helpful. Mycosynth, fabricate and colossus are solid but with 4 fabricates and all the card draw I'd probs just have 2 each of mycosynth and colossus. And I don't know if people still use Cranial Plating or not....but thats a solid piece of machinery, especially with an ornithopter. As for dropping the islands....probably doable with the talismans and seat'o'synod. Maybe change the talsimans for silver myr, slightly slower/more vulnerable but if you dont want to take the damage to use your blue spells then its an option (though tbh I'd take the hit, hopefully you'll kill the other guy before it's of any concern). Just my opinion for ya :) PS: Remember once you greaves something you can't buff it, just be wary of that!