The only dragon that "enters the battlefield" is Scion, unless you cast another one. So, without that, I would take some of the ETB out unless you plan on adding a lot of reanimate.

Take a look at your curve. It is deceptively high. Add in a lot of green, ramp it up wildly. You WILL need ramp to make this happen.

Also take a look at some of your choices. Example: You don't have a lot of space to add artifacts in order to ramp Hellkite Igniter. Is it a good choice in your deck?

And as Vileo said, if you plan on using Scion's ability often, it is good to pick up a good ammount of reanimation.

i like a Balefire Dragon Moonveil Dragon combo personally, usually with Geosurge to speed things along

card:Patriarch's Bidding is an excellent reanimating spell that will benefit you much much more than your opponents, assuming they aren't running tribal decks.

I also have a Scion deck, so it might not be such a bad idea to take a look at it and get some ideas: deck:ur-dragon-30-07-12-1. Feel free to ask me questions about card choices or the deck in general

Thank you for the suggestions!!! I took out the Hellkite Igniter. I will definitely be adding more reanimate.

Any suggestions for cards to help with ramping? I threw in a Gilded Lotus , and a Chromatic Lantern to help my mana base out.

AmethystDragon23 I took a look at your deck, I like it. I am going to attempt to build something similar to it.

I feel I might need some board wipes, what are the best board wipes for EDH?

Damnation , Day of Judgment , Rout can be played at instant speed, card:Black Sun's Zenith gets around indestructible, card:Life's Finale, Terminus

Hmm, yes. Those are all very good suggestions. I will have to pick up a Black Sun's. I already have a Day of Judgment though. So, I guess I will stick that in there.

consider Dragon Arch as another amulet

Recently came into possession of a Sensei's Diving Top. So, I threw that in, because draw advantage.

I like Dragon Arch, might have to pick one up. Thanks!

Still trying to get fetch lands.... they are just so expensive. Probably going to have to try to trade for them.