Big druid with an even bigger Survival of the Fittest twist.

Early game: Make your minions bigger with Embiggen. Ramp withBreath of Dreams and Overgrowth, cheat out big minions with Imprisoned Satyr, Strength in Numbers, Lightning Bloom and Innervate.

Mid game: Drop huge minions and win the game.

Late game: Beef up your minions with Survival if the Fittest, fill your deck with Ysera, Unleashed dream portals.

Big combos: cheat out Survival of the Fittest with either Omu + Germination or Kael'Thas Sunstrider + any of your cheap spells.