Atarka, World Render - Dragon Tribal (EDH / Commander)

Like most Gruul decks, the deck is a very straight forward aggro deck. Like all aggro decks, the two major things we want to address are 1.) Make sure our creatures hit and 2.) make sure that we do as much damage as we can when we do connect.

Dragons are an iconic creature type that not only combine evasion (flying) with decent power on board. The struggle with Dragons is that this combination of flying and good power often come at a higher mana cost. Fortunately, our Commander gives us access to the best ramp color in the game, which allows to ensure that we are able to cast our creatures on curve (if not early). Dragons and Atarka's ability to grant double strike also makes Triumph of the Hordes quite a the game stopper.

This deck happens to run the very unappreciated Pyroblast and Red Elemental Blast to ensure that you have answers to blue disruption (could be used alongside Veil of Summer and Autumn's Veil).

Infinite Combos:
1.) Utvara Hellkite + Breath of Fury + Dragon Token + Haste Enabler: While the combo feels a bit convoluted as it requires 4 pieces to go off, the deck can very naturally produce this combo (Tooth and Nail can grab you Urabrask the Hidden and Utvara Hellkite and put them into play; Lathliss Dragon Queen on board can make you the one token you need). To make it work, enchant the Dragon token with Breath of Fury. When it attacks, Utvara Hellkite gives you a 6/6 token. When your attacking token deals combat damage, you use Breath of Fury's effect to enchant the token you just made and give you another combat step. With a haste enabler (Rhythm of the Wild, Urabrask the Hidden, or Dragon Tempest), you can always enchant the new token with Breath of Fury.
2.) Savage Ventmaw + Aggravated Assault: You will always net a green or red mana once you've paid for the enchantment's effect, and since it does not empty once you moved from that combat phase it could help you cast spells should you want to. Should your opponents have no creatures to block Savage Ventmaw (perhaps an inclusion of Rogue's Passage could assist with this endeavor, even if you have to attack the one open player multiple times to make enough mana to put into the land's effect), these two cards are all you need to secure the win.