Sacrifice your lands, make lots of elementals, replay Gaea's Cradle with Crucible of Worlds, draw and play your whole deck, pump your creatures, destroy all your opponents' permanents, deck your opponents, and win. And all that in just 1 turn too. This is a deck that will satisfy your inner Timmy, Johnny, and Spike.
Doubling Season, Parallel Lives, and Primal Vigor give multiple elementals per land sacrificed, which translates into multiple cards drawn with Garruk's Packleader, Elemental Bond, Symbiotic Deployment, or Greater Good. Cream of the Crop allows you to sort of scry 5 each time before you draw so you get the pieces you need. Genesis Wave, Shamanic Revelation, and Freyalise's -6 (usually the game won't last long enough to activate her more than twice, although Doubling Season means she enters play with enough) allow you to draw enough to hit a critical mass of cards to play your library, in case you are missing some of those cards in play. Omnath, Locus of Mana is also great for Genesis Wave and Greater Good.
Rites of Flourishing, Azusa, Lost but Seeking, and Oracle of Mul Daya give you 4 extra lands played per turn. But we are greedier than that. We can play Gaea's Cradle many more times a turn. And then it doesn't matter because you don't need another turn to win the game. How, you ask? With spells like Explore, Summer Bloom, Restore, and Journey of Discovery. There's plenty of recursion such as Eternal Witness, Regrowth, Gaea's Balance, Primal Command, and Restock to keep replaying these spells. Eternal Witness + Regrowth
and Gaea's Balance give rise to a lot of infinite combos, as we shall see below.
Repeatable sac outlets like Constant Mists, Sylvan Safekeeper, and Zuran Orb let you sac the Cradle directly, although there's plenty of land destruction you can point at your own Cradle if you haven't drawn those yet. Crucible of Worlds is crucial, and Ring of Three Wishes allows you to tutor it (and any other cards including sorceries and enchantments), but with enough draw you can keep going for awhile until you find either.
In fact, there's an infinite combo for infinite tokens with infinite power/toughness and infinite mana. With Garruk's Packleader or Elemental Bond, and a sac outlet such as Zuran Orb (which also gives infinite life with this combo), Sylvan Safekeeper (which will not run out of shroud targets as you make more elementals with each cycle), or Constant Mists in the graveyard (which will require you to win without combat), just cast Summer Bloom / Journey of Discovery / Explore (although you might deck yourself with this one), cast Overwhelming Stampede, then cast Gaea's Blessing / Dwell on the Past bringing back Bloom and Stampede. Sacrifice Gaea's Cradle (or Nykthos, Shrine to Nyx should also work, but if you have Stone-Seeder Hierophant out you can sacrifice and replay any other land, e.g. Khalni Garden for the tokens, and be at lower risk of sudden graveyard hate taking your Cradle away), draw the remaining cards from your library, replay Gaea's Cradle from the graveyard, tap it for mana, play Regrowth / Eternal Witness bringing back Blessing / Dwell, and repeat the process. If you are using Witness, you need a sac outlet like Altar of Dementia so you can bring it back again. Altar also has the added benefit of decking your opponents.
Once you have infinite mana, you can repeat the process sacrificing and replaying Strip Mine instead to remove all your opponents' lands.
As for other problematic permanents such as Platinum Angel, Grafdigger's Cage, Moat, or other things, you have removal such as Beast Within, Song of the Dryads, and Freyalise's -2. But fortunately, we have another infinite combo with Terastodon too, this time using Witness / Regrowth, Blessing / Dwell, and Terastodon for the infinite combo, sacrificing Witness and Terastodon each time. Arcane Lighthouse ensures you can hit that permanent, and the indestructible ones are still vulnerable to Song. Even if they have infinite indestructible permanents, you can destroy an infinite number of them with Strip Mine, Song, Blessing / Dwell, and Witness / Regrowth. Just remember that for these combos to be infinite you need to intersperse them with the Cradle and Bloom combo, or generate enough mana and unused land plays first.
Counterspells can be a problem for your infinite combos, but as long as you can bring back some of the pieces using Restock or Primal Command you should be good to go.
Time to swing for the win. Akroma's Memorial gives your creatures haste and a lot of evasion to break through, so you don't need another turn before you can attack with your massive army. Siege Behemoth ensures that the damage gets through. Overwhelming Stampede with Omnath in play will give your creatures +1000/+1000 on the first cast, and things only get crazier from there. 5+ digit creatures are a bit overkill, but that's why we play Commander isn't it? Plus it's completely achievable by turn 5 or 6. Craterhoof Behemoth would work too, but Stampede is much stronger early on when you have only about 10 tokens, but with Omnath or Coat of Arms in play.
What about combat tricks? Sylvan Safekeeper can protect your creatures from targeted spells. Toxic Deluge isn't an issue because your creatures are way too big. Your only worries are things like Wing Shards, AEtherspouts, Fog, or sweepers like Wrath of God at instant speed, but they would not have the mana to cast them, except with mana rocks and dorks. Oh that's right, we've already destroyed all their mana rocks. You can take out all their dorks too with Beast Within, Witness / Regrowth, Bloom, and Blessing / Dwell.
They're pretty much left with free spells or cards that can give mana from the hand such as Simian Spirit Guide, but none of those should threaten your board control, except maybe Grapeshot or Tendrils of Agony. You can prevent yourself from losing with Platinum Emperion or Angel, which you can protect with Sylvan Safekeeper. You could also use Scroll of Griselbrand to discard all their cards, and recur it with Terastodon.
What if you don't want to win by attacking, or too many creatures are tapped by Symbiotic Deployment, or you used Constant Mists this turn? You have already decked your opponents and destroyed all their lands and other troublesome permanents. Of course, the decking won't work if they have cards like Gaea's Blessing or Kozilek in their library (that's also one reason why we run Blessing, if you needed another). Mikokoro, Center of the Sea recursion with Blessing / Dwell and Witness / Regrowth would actually allow you to mill them, as long as you activate its ability after Blessing / Dwell has left at least one card in your library so you don't deck yourself too. Congratulations, you've just milled your opponents with a green deck for bonus style points.
Since you are playing out your whole library, this leaves you vulnerable to targeted instant-speed draw or mill as well, so either do likewise for those players who might have Sign in Blood or some other draws, or leave a few more cards in the library. Also, be careful not to mill yourself with Greater Good, Shamanic Revelation, Regal Force, or Horn of Greed, since those are non-optional draws, athough sac outlets like Greater Good and Altar of Dementia can cut your creature count to just the right number to not mill yourself.
Flip
