This is the post-ROE edit. Saw a lot of Eldrazi at FNM tonight. The idea is the sideboard turns this into a completely different deck. Facing an un-mill-able mythic eldrazi deck? Swap out the Excavator and Traumatize for the Artisan, and some Hunters (against spawn tokens), or Dispels (direct damage), or Archers and Raptor (fliers).