DESCRIPTION
Plan A: Pretty simple combo using the Excavators to turn each of your ally spells into a bonus mill.
Use the shapeshifters to copy the excavators to make more instances of milling happen.
Plan B: Use the pumped up creatures with life link to pummel
Path to exile combos with a free archive trap if they search for basic land.
Emrakul actually fits as a Plan C win condition because the druids can get some pretty large mana incoming to get him out quickly. He is also a built in mill defense.