Good Black/Blue/white Artifact deck?

It looks good. I would suggest cutting the extraneous cards that do nothing to help your theme, like Shell Skulkin, Thoughtcutter Agent, Protective Bubble, Quietus Spike, Voltaic Key, Dispeller's Capsule, Trip Noos, Sphinx's Herald, Pack's Disdain, Rattleblaze Scarecrow, and Disenchant. After you remove all those, I would suggest adding in more of the excellent cards you already have, like Ethersword Canonist, Tidehollow Strix, Esper Charm, Sharuum the Hegemon, and Brilliant Ultimatum. I would also suggest you get Scourgl, if possible, a 4-of. They are extremely powerful against nonartifact decks, since it is pretty much a one-sided Akroma's Vengeance.