FanOfMostEverything 
Planeswalker — FoME
A colored artifact creature already implies cybernetics. See Esperites, some Phyrexians, and "[Sarcomite Myr.":](http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=136212
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Also, as written, there's a very good chance that Silver will rampage every turn, since Serenity is legendary. As long as survives until your upkeep, you'll create another, the legend rule will kill one, and Hired will follow suit with your opponent's face, only with fewer paradoxes and more pummeling.
Also, as written, there's a very good chance that Silver will rampage every turn, since Serenity is legendary. As long as survives until your upkeep, you'll create another, the legend rule will kill one, and Hired will follow suit with your opponent's face, only with fewer paradoxes and more pummeling.