Deck idea more than a combo

[Destore117]

{Nykthos, Shrine to Nyx} + {Genesis Wave} +  {Wheel of Sun and Moon} +  {Cathars' Crusade} + {Champion of Lambholt}

Play champion, then play every other creature in your deck that you can
OR
You could {Purphoros, God of the Forge} play a lot of token spawning creatures, and lol for game.

[Remillo]

Well, ignoring the rest of that list, there's already a deck called Nykthos Green running around in Modern, which uses Nykthos and huge numbers of Green mana symbols (1-drop Arbor Elves, 2-drop {Strangleroot Geist}/{Burning-Tree Emissary}, 3-drop {Wistful Selkie}, etc.) to generate huge amounts of mana.  Nykthos is used as a secondary mana generation, though, as the core of the deck is Arbor Elf with {Utopia Sprawl}, which can get you up to 4 mana on turn 2, easily.  The "NykWave" version pumps this mana in to Genesis Wave to play a huge number of creatures, often resulting in your opponent taking a {Crafterhoof Behemoth} to the face.