Sarkhan Vol has inspired a cabal of wizards to experiment in transforming lesser creatures into dragons. And all creatures are lesser when compared to a dragon.

Star of the show is combining Willbreaker and Descent of Dragons.

Start by building a goblin army, countering as needed.
Willbreaker plus multi-target spells (12) steals the opponent army.
Descent of Dragons makes your whole army fly, and gets around Willbreaker's limitation of giving things back when he dies.
If the game persists into late game, the Hellkite doubles the size of your army every time you attack.

Includes some mana assists (Rite, Sarkhan) to help power the mid to late game.  Sarkhan also provides card draw for the late game.