I really like this deck! Dragon tribal has always been a deck I've wanted to build, and this is a very good version of that. Solid +1 from me!

You are someone after my own heart, love the deck, it looks very fast and scary, that is the kind of deck I love! although you might want to think of some way to deal with opponent's threats, like burn. I built a similar version of this deck, however I didn't add any slumbering dragon synergy, or green cards. Scourge of Valkas forms the center of a lot of dragon-related synergy, why don't you check my version out and see if you have any ideas. I built it before seething song was banned, so do you have any other ideas on how to hit a five drop on turn 3? Thanks in advance for any suggestions you might have!

Here's my version: http://tappedout.net/mtg-decks/saninodragonsja/

Thanks for the +1's. I have some protection from burn. I had Reverberate in deck, but it rarely get to use it, so i changed it Bioshift. Now i can change couters from Slumbering Dragon to other creatures if slumberer gets from Doomblade, or if Slumbering Dragon gets blocked, i can just move all counters to unblocked creature. And Savage Summoning is here to couner burnt too. That one extra +1/+1 counter from Savage Summoning makes Slumbering Dragon harder to burn and you can make use of that flash too to get one extra counter. Just play Slumbering Dragon on your opponents turn when he starts to attack you.

Scourge of Valkas was your first mythic? ME TOO!!!!!!!

Neat! This deck is just sick now after Dragon Tempest came out.