United in Stormwind Cards List & Guide
The only way now is to craft him.
I don't know why, but I'm in love with Barnes' play animation. The dimming of the lights, the spotlight onto the new minion, the beautiful music, and that majestic voice describing the fair "actor" that will be coming about.
More than likely. If you were to discard Silverware Golem while Malchezaar's Imp is in play, it'll most likely summon the Silverware Golem and then draw a card.
He's in the GvG set, so he's only available in the Wild format now.