Hearthpwn

Most cards that can be played with dragons cost 3,5,7 mana (Blackwing Technician,Blackwing Corruptor,Rend Blackhand) so there are plenty tempo choices.This is a tempo/control deck so you will try to clear the opponent's board and extend your own.Most minions tend to be played on curve and removal is mostly used when you have some extra crystals (Drake+Darkbomb etc.).It also allows you to tap often if you need to.

You can switch out Malygos or Nefarian to add other more effective expensive dragons like Alextsrasza.

This deck worked pretty well for me and it may work pretty well for you.