You said not to take heavens....
What if I took a small unit of huntsmen.
A 5 man unit of pistoliers.
Then, 2nd turn, I cast ligtning on the Shaggoth...but the closest unit is behind him (huntsmen, unit of 5..throwaway). Then, hopefully by that time, my pistoliers are up on a flank, able to lead the frenzied ogre on a wild goose chase. If nothing else, it could potentially leave the shaggoth out of the game for 3-5 turns for....less than 150 pts?