Bear in mind that Karrthus, Tyrant of Jund is susceptible to cloning due to the new legendary rule. When a clone would enter play as Karrthus, it will nab all your dragons including your commander.
Crazy decks with crazy plays are built to satisfy their creator, the receiving end either answers the threat or accept defeat. It's usually fueled by card advantage like a left-alone Consecrated Sphinx backed by countermagic, numerous mana and politics.
I had a game once on turn three: I had nine mana, dropped Blatant Thievery then Twincasted it. No one contested the spells on the stack then they conceded once I stole their lands at turn three.
Hey guys look at him he's so special...
Please don't mock other users. Warning for trolling - BlackVise
Mycosynth Lattice + Vandal Blast perhaps?
I had a game once on turn three: I had nine mana, dropped Blatant Thievery then Twincasted it. No one contested the spells on the stack then they conceded once I stole their lands at turn three.