Dragonstorm

Hello there, have you thought about playing Guild Feud ? It isn't very competitive, but it can be quite amusing to mill people and get dragons for free. Oh, and you might want to replace Skyshroud Claim with Explosive Vegetation eventually. It is always nice to be able to choose which lands you are going to fetch.

Try Cryptic Gateway and Dragon Arch . They make it disgustingly easy to cast dragons. You can even tap all your dragons at the end of an opponents turn, when you won't get attacked again, to drop your entire hand onto the field

Also, Prey Upon is cheaper than Pit Fight

Shard Convergence

Dragonspeaker Shaman is a useful card here, so that you may cast your Dragons even easier. Kilnmouth Dragon I am surprised isn't in here, it can get humongous.

Also, I notice a massive lack of artifacts. Gilded Lotus , Darksteel Ingot , Chromatic Lantern and others can sort out your mana, while Quicksilver Amulet can get your creatures out even earlier. Lightning Greaves is considered an EDH essential.

wow... didnt realize how long it had been since i updated this list...