Level 26.
I drank the best resist-all potion I had, summoned the demon and the creature, and proceeded to run around like a headless chicken, spamming Magic Missile, Magic Blast, and Fire Wall.
At about 15 second mark, a 2000+ XP gain informed me that I killed either the Divine or Zandalor, but since I didn't see it, I assume it was either the creature or the demon that did the deed. At 20 second mark, the other "boss" died, after which the surviving paladins were easy pickings. All the while I continued to heroically scurry about chugging potions, and screaming "NOT THE FACE OH MY GOD NOT MY PRETTY FACE PLEASE!!", I'm sure...
It wasn't difficult per se, it was chaotic and crazy and somewhat underwhelming, really. Definitely not epic.
