Sorry, wasn't sure what thread to post this in:
I think it's a good idea to upgrade the Otyughs first. Before, I always had to wait for Rain of Fire or Plate Armor before my Otyugphs became useful. Upgraded Otyughs can basically run over all of Rainbow, Incarnate, Chaos Lord, and Morte's guys. My win percentage probably increased by 10% for each Otyuph upgrade -- until you get 2 upgraded ones, it feels like the whole deck is a crapshoot. Afterwards, it's just a matter of sticking an Elite Otyugph for a few turns.