If this is Ventage throw in a Tolarian Academy (ristricted to one), if it is Legacy then you can't. Tolarian Academy, Tap add one Blue mana for each artifact you control.
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Its a good theory, but the main problem is most type 2 decks are a 3rd or 4th turn win, running 4 colors slows you down to 6th at the earliest. Also what is your win condition?
Other than your plainswalkers what are you profing?
I would drop the Li Metals to 2, and throw 2 Koths in for mana accel. Also run Fireballs. You are calling this a burn deck but its missing the main burn. Also run the Furnace Celebration, every time you sac a permentate you can pay 2 to burn 2 to a creature or player. Also throw in 4 red spell bombs, they cycle your deck and you can sac them to the Rebirth, and pay the 2 to add burn to it. So for a cost of 4 (1 for rebirth, one for the spell bombs draw and 2 for Celebration) you get 3 1/1 goblins, draw a card and burn your op with a shock.
There's no sctruture here, why are you running thoes fetch lands, I understand speeding up the deck, but the land comes into play tapped. Increase the Tempered Steels to 4, drop the battlespheres and the clone shells. Run 4 Memnites, get 4 Ornithopters, run some glint hawks, and drop the green mana. You need cheep creatures, that can ramp to tempered steels, if you can afford them get 2 Mox opals. Take a look at my deck, (granted I have things I need to fix on it as well.)