MrAwesomeSocks I wouldn't recommend you run it, it combos well with Mycosynth Lattice but that'd be the only reason I'd run it. And since I don't have a couple of the planeswalkers I found it to be a decent substitute. Still trying to get my hands on those tutors, working overtime making money haha.

themindxyz, KoriAne: Mycosynth Lattice and Furnace Dragon can work! You just need a Neurok Transmuter to help. I have a deck made around it, Board-wipezilla!. I go in depth with the combo there.

MrAwesomeSocks:+1 from me; I found my new commander! Definitely looking forward to using Feldon of the Third Path and the Kamigawa dragons. (Where's Kokusho, the Evening Star btw?) Also, have you considered Patriarch's Bidding? Or Bow of Nylea to recycle some Dragons for Ur-wrecking again?

ouch.nicekick: Thank you for the comment, suggestions, and +1! I'm always happy to hear that I can inspire others to use Scion of the Ur-Dragon.

Bow of Nylea is a card I've been pondering about using for a while. I like the idea of shuffling four dragons back into my deck for later use.

Patriarch's Bidding is not a card that I'm fond of, as it allows my opponents to revive creatures as well. And, as you can see, I'm not a very dragon-heavy deck. I prefer to transform Scion into something lethal, rather than swarm.

Kokusho, the Evening Star is a decent card, but currently no space for. The life gain is nice, but also paints a giant target on my back.

With the Bow, you don't even have to shuffle all four; you can choose one or two. Or even none at all and choose a different effect all together. You have options.

Point taken on the Bidding! You really would not want to have someone resurrect their slivers...

Kokusho though... Doesn't running infinite combos or infect already earn you that giant target? At least Kokusho can help you pay for that Moltensteel pump.

I'd definitely suggest Bladewing the Risen, Utvara Hellkite, Scourge of Valkas, and Dragon Broodmother in the main board. Granted, I don't play a lot of competitive EDH, but these dragons have been fun in my own Scion EDH deck where I use a bit more heavy of graveyard strategies:

Copy twice, discarding Bladewing and end up as Scourge of Valkas. Reanimate into Bladewing. Bladewing triggers, get back the actual Scourge of Valkas.

Copy 2-3 times, discarding Bladewing the Risen, whichever other dragon you want, and end up as Teneb. Swing with Teneb, choose to take Bladewing, and get whichever other dragon you wanted for free also.

Scourge of Valkas + Dragon Broodmother is also very fun (and with Utvara Hellkite too.)

Karrthus, Tyrant of Jund I bring because I like to combine Deadeye Navigator + Peregrine Drake which I search out with Conspiracy, allowing for infinite mana and thus instantly winning the game (pull out Scourge of Valkas and bounce him infinite times.)

These are just some of many of the fun things I've done with my Scion deck. I haven't bought all the cards I would need to make my deck more competitive, but I hope this helps anyway. If you do like it though, I'd love to discuss more things you can do with Scion.

I just realized that I didn't make a good argument for Karrthus, Tyrant of Jund above. But he's won me plenty of games when I used above combos that were not infinite for great burst.

EidolonDragon: Thanks for the comment.

Unfortunately, all the cards you suggested used to be in my deck, but were cut out for different reasons. Mostly because they were too slow. Like I've stated before, my Scion of the Ur-Dragon isn't meant for swarming the field. But rather, swing with surgical and lethal precision.

I think, with Sarkhan Unbroken in the deck, it's a shame to leave out Karrthus simply because he's the key to an all-Dragon Epic Win with his Ultimate.

Long_Con: Thanks for the comment.

Honestly, I've never used Sarkhan Unbroken's ultimate before. My opponents are always dead before I build up the 8 loyalty.

revenicus nice combo! Also pretty easy to do. My only concern it's about Enduring Scalelord, which is a useles dragon without Dack's Duplicate so I use 2 slots for one combo, and that transforming it on the main phase I allow the opponent to respond as he wish, while I can't anymore transform my Scion until end of turn. Nice one btw. I'll cite you in my deck. ;)

I notice you have Laboratory Maniac in your maybe. I'm guessing that is to combo with Curiosity right? the problem with that it that you have to end the "draw+deal 1 damage" combo to cast him before you draw your last card, then you have to find a way to draw another card after you cast maniac to win. also it is very risky as manic is begging to be killed in response to you drawing. the answer...

I little, obscure, old, artifact called...

Credit Voucher!!!

Use this unknown, weird thing instead of maniac to draw your hole hand a second time causing Niv to deal all of that damage again, it costs 1 more then maniac (2 to cast and 2 to use) but there is no risk and you can deal about 160 damage, should be enough to kill everyone. make sure you leave a few cards in your deck just in case.this also combos well with a card like Rise of the Dark Realms. IF you can't kill everyone off with 160 dmg (some jerk plays a life gain deck) then kill all creatures on the field and discard all of the creatures you just drew, then next turn cast Rise and watch jaws drop.

This also works with Dragonlord Kolaghan because now all of your creatures have haste! Dragonlord Kolaghan is the answer to the fear of running Karrthus, Tyrant of Jund. he is not quite as good. but there is no risk of a card like Bribery. Dragonlord Kolaghan also works great with Sarkhan Unbroken.

Also since last I commented on your deck my deck has changed a ton. think it is much better. take a look if you have time. How to train yo-Ur-Dragon

lastly, I remember that you said that your play group plays a lot of indestructible creatures. IMO the best way to kill an indestructible creature is not to kill it... steal it! Control Magic and it's friends is the answer to all your woes.

Zer0w

I remember you talking about Credit Voucher last time. I play tested it vs Laboratory Maniac and I didn't like it as much. When it comes to extra damage vs auto-win, I'll pick auto-win every time. Now that Maniac is out, I highly doubt I'll be using the Voucher either.

I don't care for Karrthus or Dragonlord Kolaghan and their haste giving effects. I've stated before that I do not swarm with my Scion deck, making either card a wasted slot.

Control Magic cries in the face of Homeward Path. Plus, it is very easy to get rid of an enchantment. I'd rather get rid of it than keep it on the field.

Nice combo I use in my Scion of the ur-dragon deck is Karrathus and Standardize turning everything into dragons. Stealing everyone's creatures.

that's a kick in the gonad... the left one.

though you can't use Scion to trigger the combo because turning him into Karrathus doesn't count as "enter the battlefield". nonetheless it is a mean combo.

DracoBeans86: Thanks for the comment.

I already do something similar. I use Mycosynth Lattice to turn everyone's permanents into artifacts, then swing with Hellkite Tyrant to take all their permanents. Think big, man! Don't limit yourself to just creatures. Take EVERYTHING !!! MUAHAHAHAHAHAHA.

Okay, I'm done lol.

Zer0w: Sorry man, didn't mean to kick the left gonad.

I just wanted to state that I've tried everything you've suggested at one point and found them to be inefficient. At least in my Scion deck. In a Scion deck that swarms the field, those cards are fine. I don't swarm though.

I'll recover... you kick like a girl :)

not the fist time that's happened to me either :)

my deck's plan A is combos (many of the same ones you have) and then plan B is swarm from the grave yard with haste. I like to end the game in one turn to avoid hate and disruption.

one card that might fit your style is Privileged Position to protect your combo and let your dragons kill unchecked.

Also, Might of the Nephilim with Skithiryx, the Blight Dragon and Dragon Tyrant for an instakill that does not cost you 6 or 7 life. (I may have already suggested that one before)

Zer0w:

Be careful who you say kicks like a girl lol ;)

Anyways, I do like Privileged Position, just don't have the space for it though. And I still like Might of the Nephilim. Again, need to make space.

If you want another combo, may I recommend Worldgorger Dragon? This card plus Animate Dead can net you infinite mana, and with a card like Shivan Hellkite you have game.

Kinpa6Ansatsu: Thank you for the comment and suggestion!

Worldgorger Dragon is a card I've wanted to put in this deck for a very long time. Only problem with it is, I've never had a good way to dump the infinite mana into a way to kill my opponents. I completely forgot about Shivan Hellkite. Thank you very much! I shall work on putting this combo into my deck at once lol.

I would strongly recommend you add at least 1 basic land of each color.

Path to Exile, Blood Moon, Magus of the Moon, From the Ashes, Ghost Quarter, Wave of Vitriol, Back to Basics, Collective Voyage, and Veteran Explorer are very good reasons why. Your opponent gets free value out of these spells and many of them are quite common in EDH.

MrEM4N: Thanks for the comment!

Honestly, I feel that the regular basic lands are lackluster in EDH. In a five color EDH deck, a land that only adds one mana of a single color and has no abilities is quite useless.

What would you suggest I take out? I already like my mana base the way it is. To cut out my ABUR duals or my Shocklands would make this deck less consistent. There's simply no space them.

Besides From the Ashes, the rest of the cards you listed are pretty underwhelming. Not enough reason to add in the basic lands.

I think once you add basics in it allows you to use other spells that would make up for the lack of inherit value of a basic land in a 5-color deck.

Looking at your color wheel, Red probably won't be needed within your first 5 turns and only 2/100 cards need double White so that would be where I first started pulling. They're also the primary colors in your deck capable of dealing with any of the permanents in my first post so it's a safe bet to have them also be your first basic lands as they'll be what you want on the field to handle any threats.

So, I would replace Sacred Foundry and Plateau with a Plains and Mountain. Then, I would replace Boros Signet with a fetch spell like Cultivate that can grab both basics. Since we don't want Cultivate to whiff if you've already drawn a basic before it's cast I'd also replace Rakdos Signet with a Swamp and that should satisfy the rest of your removal color requirements as well.

My only concern is that we're putting Council's Judgment at risk by pulling 2 white mana sources but I think you've got enough redundancy in the rest of your mana permanents that the impact should be negligible.

MrEM4N: While those are great suggestions for adding in the basic lands, and I thank you for going in depth rather than "take this out because I said so", I still do not see the value of basic lands in the deck. My deck is all about efficiency and basic lands lack that.

Removing both Plateau & Sacred Foundry and replacing them with their respective basic lands is, in my opinion, a step backwards. It cuts their usefulness in half, just to add in a couple basic lands.

Cultivate requires colored mana and is has a CMC of 3, whereas any one of the signets only costs 2 colorless. I would also rather have a Signet that filters for two colored mana rather than a basic land that taps for a single color.

Thank you for your suggestions and recommendations, but I'm going to stick to my current mana base.

With your current mana base you could go with the Hermit Druid combo. This combo is common in the most competitive of scion decks. It is also a really dirty combo to use.