Your deck is not modern legal, and 70 cards is 10 too many. Not trying to Stifle your jam, but yea.

Besides the illegality of several cards, I have no idea what to really make of this deck. Throwing all the FRF Dragons in seems fun, but their mechanics don't mesh super well. I'd figure out which ones you really want, run 2-3-4 of each, and chop the rest. For a 5-color dragon deck, needs more and more consistent mana.

I just realized that sounded harsh, so if you have any questions, ask and I will try to expound on them.

changed it to casual for now, won't be going to any tournaments any time soon.

as for not running multiples of each I've found that the deck is highly adaptive, and Sarkhan's Triumph lets me fish for whatever I need based on board state, while Fearsome Awakening will let me reuse the dragons I pull.

mana base is not an issue, Haven of the Spirit Dragon + Rampant Growth + Rupture Spire proves all the colorfixing I need, while dragon arch eliminates the late game need for proper colors.

I agree on cutting certain dragons for other's, maybe a Crosis, the Purger for a Hoarding Dragon to cheat out my Dragon Arch

Any other specific trades you'd recommend?

Strionic Resonator is an odd inclusion, I'd suggest starting by cutting that.

Strionic Resonator is something I wish I had more of to be honest.

It's in there mainly for the Utvara Hellkite spawn ability, various combat abilities, and insta-speed copying a Savage Ventmaw ability to net 10 mana, as opposed to 6

Strionic Resonator will also copy Dragonlord Kolaghan lifeloss, Broodmate Dragon token spawn, Crosis, the Purger, Numot, the Devastator Thunderbreak Regent, Dromoka, the Eternal, Silumgar, the Drifting Death, and any other dragons I forgot to mention.

Yeah, and those are all cute interactions, but they increase the cost of most of your dragons by two. So now instead of a bunch of 5 and 6 drops, you have 7 and 8 drops, which is a big difference.

Except most of them aren't ETB abilities, so i'm not actually paying any more when I cast them, most are combat, so with the 6 mana a ventmaw gives me 2 is a small cost to get extra tokens or blow up 4 lands instead of two.

Tron lands, maybe? Loving the idea. +1!

Nicol Bolas is probably the best dragon to fetch with Scion of the Ur-Dragon since he can easily knock your opponent out of the game. I also suggest Sneak Attack.

Hi! You should use Urza's Incubator alongside your Dragonspeaker Shaman

Why is Cavern of Souls not a thing?????

My 10 month old's diaper consumption is the reason I don't have 4 Cavern of Souls

Nicol Bolas and Scion of the Ur-Dragon are both on my list of cards I need to pick up, this deck has been a long work in progress.

Price is also a factor in Urza's Incubator, Dragon Arch has the added bonus of preventing them from countering the creature it puts into play, though it's a heavy Naturalize target.

Not big on EDH but looks pretty good +1

It's not EDH.. but I've genuinely considered converting it into such, I have enough dragons laying around to build 2 dragon commander decks, but I only have one each of the best ones, and I hate to take apart this deck to build a commander, when my playgroup rarely sees commander matches.

I'm tempted to cut to 1 of certain cards like Crucible of Fire, Temur Ascendancy, and maybe down to 2 Dragon Arch, but then putting in 2-4 Diabolic Tutor to cheat out the cards I need sooner and thin the deck, but I worry the for the search will slow the deck.

On a side note, Aggravated Assault + Savage Ventmaw should be a thing in this deck soon.

Sorry wrong format lol

I would actually agree with the change to EDH, IF you play EDH, since you were up to 70 already, but then again... Scion isn't $1 anymore.

umm 4 colors

Okay, ONE card, which I stated was kept in there on purpose.

hmm though correct five colors is difficult