Coalition Victory is banned in EDH :(

Yeah I saw that then removed it....the system is just glitching.

Some great dragons you may want to include in this deck:

Balefire Dragon If he hits, its almost always a great board clear

Dragon Tyrant is fantastic, it allows you to deal 12 Commander damage in one swing alone if you turn Scion into it.

Moltensteel Dragon is a great finisher, pay life and swing for a killing blow. Pair this with Dragon Tyrant , and it's a quick way to finish off your opponent with just 21 commander damage instead of chewing through all 40 life.

Scourge of Valkas and Utvara Hellkite have fantastic synergy.

Bogardan Hellkite is another good staple.

A somewhat cheesy combo uses Hellkite Tyrant and Mycosynth Lattice . You have to take care in what order you play these two, otherwise you risk giving your opponent the advantage. First you drop Hellkite Tyrant , then wait until your next turn to drop the Lattice and swing. Everything on board has become an artifact, and then it all belongs to you. This is a good late game strategy, when the board is covered with stuff.

Other cards that are helpful:

Chromatic Lantern Color matching in this deck can sometimes be tricky, so having something that allows you to cheat colors in helpful.

Rhystic Study is a great draw engine that requires your opponents to either spend extra mana on their spells (effectively slowing them down) or giving you extra draw and card advantage.

Lurking Predators is another way to cheat your creatures onto the board. You run A LOT of creatures, so I think this particular card will benefit you greatly.

Rite of Replication is another abusive card for this deck. Using it on something like Scourge of Valkas , Bogardan Hellkite , or Balefire Dragon (preferably KICKED) would give you serious firepower.

I hope you find some of this useful! :)

Thankyou, yes! I completely forgot about Chromatic Lantern , and the Hellkite Tyrant / Mycosynth Lattice combo seems really powerful.

I've mostly cobbled this deck together with dragons that I'm not using in my other dragon decks, so I'd have to dish out more money to update it, but a lot of those ideas are exactly what I was looking for.