Obviously, it should some kind of reanimator deck..
And making it a Dragon Toolbox deck could be kinda nice. If you get this into play, you can pay (2) to get a Hunted Dragon to turn it into a 6/6 haste, without giving tokens to your opponent.
If some opponents kills it, turn him into Keiga in response. If it gets through unblocked (by making it an TwoHeaded Dragon), turn it into Nicol Bolas to have your opponent discard their hand or into a Dragon Tyrant for massive damage.
If you really want to do broken things, I suggest playing a Conspiracy (naming Dragon) and turning it into a 12/12 trample (with the Phyrexian Dreadnought's drawback)