This is my take on an artifact deck. It uses the proliferate mechanic to quickly churn out 3/3 and 9/9 golems while utilizing metalcrafted cheap counterspells for control with Titan Forge and Golem Foundry. Sharding Sphinx was taken out of the deck, as it's too expensive. The Golem tokens can churn out creatures faster than the Sphinx anyway, to keep the opponent overrun and offer fuel for Throne of Geth.
Leaden Fists help keep even a small creature like Thrummingbird alive and useful, and the debuff isn't a big deal with Voltaic Key in the deck.Edit Of course, Thrummingbird can't be combo'd like that, but any of the actual Artifact Creatures can.
Voltaic Key - in addition to the proliferate effects - renders Everflowing Chalice a powerful mana battery for the Chimeric Mass and for Voltaic Key combos.
The deck hasn't been built yet, as it still needs work. Specifically I'm not sure which lands to use, and I'm looking for a bomb to place in the deck. I'd love some Master of Etherium in there, if I was sure they gave enough bang for their buck.
Edit
Instead of splashing G/W to add Splicers, I decided to splash B to add Rite of Consumption and Precursor Golem. It will require blue control at hand, to pull off combos, but so would keeping alive splicers. I thought better of using Precursors. Even without Precursor, the Rite is still a cheap way to deal alot of damage, with the potential for 9/9 creatures to sacrifice. With Chimeric Mass, there might be even stronger creatures to use as bombs.
Additionally, Shrine of Burning Rage found its way into the sidedeck. With Proliferation and a cheap Activation Cost, this, like Rite of Consumption, offers a bomb that opponents should not underestimate.