Omnath/Borborygmos Rage Tag-team (EDH / Commander)

This "land matters" deck is built around two ragers. Omnath, Locus of Rage and Borborygmos Enraged are both playable as commander in this deck and the action changes depending on which one you pick to lead and which becomes one of the 99 for each game. Both of the possible commanders for this deck want to see a lot of land and not just because of high CMCs. This deck is land focused by including 45 of them and land will never be a dead draw. Don't forget that lands are colorless so you can include lands that you wouldn't normally think of when building for Gruul or lands that make colors outside the commander's color identity (i.e. - ETB effect lands like Bojuka Bog which makes B or Halimar Depths which makes U).

Omnath's 1st ability creates a 5/5 RG Elemental token any time a land enters on my side. This can be abused by fetch lands and bounce lands as well as land recursion. There are enough other landfall triggers in the deck to gain much more value by double dipping on each landfall. Omnath's 2nd ability deals 3 damage to target creature or player whenever an elemental dies, which can get around blockers or Ghostly Prison type defenses.

Borborygmos gives us equally abusable abilities with a different flavor and direction for the same deck. This big trampler grabs up to 3 lands from your deck whenever he lands some combat damage on a player. Once you've got land in your hand you can discard it for 3 damage to target creature or player and rack up the commander damage.

Lands Matter: Cards that care about land form the main theme of the deck. Seer's Sundial, Oran-Rief Hydra and Grove Rumbler all have landfall abilities that can go off many many times per turn. Gruul has some generous spells that scale with the number of lands you control. Rubblehulk, Zendikar Incarnate and Ground Assault all reliably give a big payoff from land count alone, while Liege of the Tangle turns all those extra lands into BIG bodies. Since lands will take up 45% of the deck, it is important to get as much value as possible. Common and Uncommon level sac lands like Evolving Wilds get much more interesting causing multiple landfall triggers and with recursion can be abused over and over. Lands that sac to make creature tokens such as Hellion Crucible, Cradle of the Accursed and Gargoyle Castle also benefit from the land recursion. Utility lands that give haste, trample, etc. and lands with ETB effects take the place of many spots reserved for spells in other decks.

Getting More Lands into Play: We'll need as many lands as possible hitting the battlefield each turn. In the early game this will accelerate us to our 7 or 8 CMC commander, in the mid to late game will allow for directly triggering our commanders abilities for devastating effect. Some stars of the format will absolutely fuel the rage fires such as Oracle of Mul Daya and Courser of Kruphix which are at home in a lot of green decks but really shine here. Also Mina and Denn, Wildborn can play a similar role or could even be used as a lower CMC commander of this deck without needing too many changes. We can also get a lot of value from Xenagos, the Reveler since his +1 ability ramps us to our commander, can create a hasty 2/2 satry token for 0 loyalty or for -6 could potentially drop 7 lands/creatures in one go. Sword of the Animist can get a ton of land out as well.Other creatures can bring land out when entering or leaving play like: Dawntreader Elk, Sakura-Tribe Elder, Primal Druid, Wood Elves and Burnished Hart all make the list. Although not a creature, Expedition Map is also an obvious inclusion.This deck includes 7 Cultivate style sorceries to tutor for land as well as Abundance for getting to it on demand. Clear the Land is a hidden gem in this deck since it triggers landfall while ramping and denies opponents any non-land cards from the top 5 of their library (bye-bye Sensei's Divining Top).Land recursion from Splendid Reclamation, Creeping Renaissance and Life from the Loam will also allow you to recover from a land wipe or mill effects in addition to refilling your ammo.

Sub-themes: Card draw... we need to see a lot of cards to get to our non-land cards more often. Cards like Garruk's Packleader gives us a card every time Omnath makes a token and Ulvenwald Observer can refill your hand after a wipe kills those same tokens. Don't forget to add Harmonize. What to do with all these tokens? Parallel Lives and Essence Warden help you maximize the tokens as they come into play. Giving them all trample is nice and is easy to do with Brawn, Khenra Charioteer, Tattermunge Witch or Arlinn, Embraced by the Moon Flip in addition to classic Overrun.Creature Tutor is accomplished via Flamekin Harbinger or Primal Command since I can't currently find Worldly Tutor up for trade locally and I'm trying to keep the budget low on this one.

Upgrades: Worldly Tutor as well as the rare sac lands are obvious upgrades. A full cycle of the new Cycle lands from Amonkhet could allow you to skip past of the land if you get totally flooded, Omnath/Borborygmos get shut down or you need to dig for a specific answer. I also feel that man lands could play a larger role in the deck as another main theme but I don't have a ton of man lands and what I do have is tied up in other decks. Another angle could be a Maze's End win condition with all the guild gates and may be the next direction I take the deck as it evolves. I'd also like to add some epic lands like Dark Depths and some of the legendary lands and general land bombs and might also add some land wipes since this deck can benefit from them on the recursion angle.

Thanks for any feedback!