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Format Legality
1v1 Commander Legal
Alchemy Legal
Archenemy Legal
Arena Legal
Block Constructed Legal
Brawl Legal
Canadian Highlander Legal
Casual Legal
Commander / EDH Legal
Commander: Rule 0 Legal
Custom Legal
Duel Commander Legal
Gladiator Legal
Highlander Legal
Historic Legal
Legacy Legal
Leviathan Legal
Limited Legal
Modern Legal
Oathbreaker Legal
Pioneer Legal
Planechase Legal
Pre-release Legal
Quest Magic Legal
Standard Legal
Vanguard Legal
Vintage Legal


Legendary Creature — Dragon God


When Tiamat enters the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle your library.

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legendofa on Domain Maelstrom Dragon

1 month ago

TFCamaro12 I agree that Leyline of the Guildpact isn't a "bad" card. The main problem is that it's such a build-around card. If you can hardcast it, you probably don't need it, and if it's not in your opening hand, you're stuck playing super slow until you get it out. It doesn't have any redundancy, so backing it up is hard. Basically, either you have it, or your deck chokes.

What exactly is the role of Leyline of the Guildpact in this deck? As I see it, the most efficient line is to set up the Urzatron, cast Morophon, the Boundless or Timeless Lotus, and cast Tiamat from there. The Leyline + Scion of Draco line is good long-game synergy, but it seems to me that dumping some big hasty smashy Dragons out might be a better payoff. There's no reason for the creature color spreading outside of Scion, and I'm not sure how much the basic land ability helps.

If I may suggest, try reworking this deck to focus more on the Morophon-Lotus-Tiamat line, and save the Guildpact for a different deck. Unless I'm missing something obvious, of course.

The More We Work Together is my shot at a Leyline of the Guildpact deck, if you're interested in seeing a different angle.

wallisface on Domain Maelstrom Dragon

1 month ago

I still feel like the deck’s going to really struggle to function without Leyline of the Guildpact in your opening hand. I also think that the Tron lands are a nonbo with Leyline of the Guildpact, and having both in the deck feels very awkward - especially when a lot of your spells require coloured mana.

Tiamat looks impossible to cast unless you have Morophon out - which imo is too many steps to go through.

PhyrexianHellkite on 50$ Budget The Ur-Dragon

5 months ago

I have tested creatures/cards like that in the past and don't like the staying power or what they are adding to this deck. The creature versions get board-wiped the fastest and don't tend to extend the deck past extra mana available, so I prefer to start getting bigger game impact dragons out and only ramp via land ramp and some artifacts. Mainly to help with my mana fixing, draw, and one sided board-wipes. See the list of cards that those would not interact with other than Scaled Nurturer, that one gets the dragon pass but not card draw and would take up one of the 30 dragon slots. Garruk's Uprising, Elemental Bond, Frontier Siege, Wrathful Red Dragon, Silumgar, the Drifting Death, Rith, Liberated Primeval, Miirym, Sentinel Wyrm, Lathliss, Dragon Queen, Kolaghan, the Storm's Fury, Ganax, Astral Hunter, Firkraag, Cunning Instigator, Dromoka, the Eternal, Bladewing the Risen, Atarka, World Render, Haven of the Spirit Dragon, Relic of Legends, Jade Orb of Dragonkind, Carnelian Orb of Dragonkind, Crux of Fate, The Ur-Dragon

So 20 cards or 1/5th of the deck that those would not extend or interact with. Here is a link for some statistics for mana reducers that basically says if you can play cards every turn and use all mana you have as well then they work the best in those types of decks.

Is it worth it to play cost reducers in MTG EDH commander? https://www.youtube.com/watch?v=prltKyeJMKI

Form about this topic https://www.reddit.com/r/EDH/comments/b3stji/cost_reducers_vs_ramp/

Thanks for the comments! Hope this gives some insight on my deck building/playing style and if you run those mana dorks/cost reducers, I think cards like can help and, I do run them in other decks with less colors or better card draw. I do think a commander like Tiamat would benefit from those to help play the tutored cards after cast and help commander tax to recast it and refill your hand. The main thing I consider is what am I swapping, and in this deck and it's mana fixing for a 5 color deck on a 50$ budget, or a potential dragon slot for a deck that wants dragons on the field attacking to start getting ramped up.

I will continue to update this deck and work to give better descriptions of my other decks as well as I build and update my commander arsenal!

Unlife on BBEG Deck Ideas

6 months ago

saluma I like Tiamat, it is 100% a DnD BBEG and dragons are big and nasty.

KBK7101 I like The Tarrasque, but it does feel kinda meh, similar to Ghalta who's very strong, but just doesn't feel as 'world-ending'. I'd forgotten the gods though, maybe some sort of aristocrats-animator thing. The captain is fun, but he has the more 'hit and run' thing going for him as a pirate.

DreadKhan I've played with Kresh the Bloodbraided before, he can be fun but he can also feel a bit clunky which was why I;d dropped him previously. Sauron, the Dark Lord has that traditional world ending feel, and his ward cost means he dodges most removal. I'd forgotten goad was a thing, it brings me back to Queen Marchesa, a more political goaded build to manipulate other decks. In terms of the decks competing against one another, I think they're fairly balanced at the moment, but they're also still being tuned and adjusted.

legendofa Well, gonna start with a massive thank you first, that's a wicked great breakdown. With this massive list, maybe I'll add a second in command deck along with the BBEG one....

I'm not worried about it being directly connected to the forgotten realms, just kinda having a DnD class/BBEG 'vibe' for lack of a better word (I mean, my paladin deck design is knight tribal helmed by Syr Cadian, Knight Owl) Among that massive list, Konda, Lord of Eiganjo, Progenitus, Uro, Titan of Nature's Wrath, Umbris, Fear Manifest, Momir Vig, Simic Visionary, and Malfegor all stand out. Your dimir list also reminded me of Runo Stromkirk  Flip as a big monster summoner.

TypicalTimmy Dihada is an interesting choice, maybe a deck full of brainwashed missing adventurers. A lot of these suggestions keep leading me back to mardu, so I may take a deeper dive there.

Either way, this has been massively helpful. Course, now I have the opposite problem, so many choices to narrow down.

saluma on BBEG Deck Ideas

6 months ago

Some of the most notorious creatures in D&D have to be the dragons. The ultimate test of strength for a party. So maybe Tiamat and her dragons would be a nice archenemy?

JaradGolgari on Five Color Uploadable

7 months ago

Using Tiamat as the commander, casting and fetching Ziatora, the Incinerator and Kura, the Boundless Sky you can use the land tutor and treasures to do the following combos.

Consider adding Inventors' Fair, This can be tutored for by Kura and can then fetch Maskwood Nexus.

Faceless Haven could also be a good add, by fetching it, and Inventor's Fair, you could then fetch The Book of Exalted Deeds, if you add it, and get that combo out.

Ashaya, Soul of the Wild would allow all creatures to also be landfall triggers.

Alkeniw on Storming Legends - The Ur-Dragon

8 months ago

This deck is awesome, and I would definitely be scared facing it. I have my own dragon deck, and I do wonder, why don't you have Lozhan, Dragons' Legacy, Tiamat, or Earthquake Dragon in this? I've got my own dragon deck, and they work pretty decently in there.

Bakterius on The Ur-Dragon, quest for 100%

1 year ago

Hi, i have created a slightly more defensive variant of my Ur-Dragon deck for testing (The Ur-Dragon: A bit more defensive) that fared much better against your deck in this playtest round. Maybe i had better draw luck this time? Essentially, i just included some of the draw effects you use and brought back my beloved Karrthus, Tyrant of Jund + Shields of Velis Vel combo that can be fetched via Tiamat. To make room i threw out the cards that made it theoretically possible to get a 1st turn commander kill, with a hypotetical God hand of course :D. Maybe this will become the real deck instead.

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