Both bosses have Forked Lightning, which does massive amounts of damage at close range. Tip: You may want to maximize your fire and lightning resistance. The bosses are level 55 and will destroy any lower level character with ease.
Like all uberquests, do not attempt it as soon as you find the entrance. Strategy: No rocket science, just kill the two bosses. Neither Horazon nor the demon wants you to be there, so do not expect a warm welcome by either side. He managed to trap it in his arcane sanctuary, but could not defeat it and it almost killed him. Horazon (also known as the real Summoner) summoned a powerful demonlord that turned out to be too strong for him. This first uberquest reenacts a removed quest from Diablo 1. Return whence you came and your life will be spared Warning: Do not jump in at level 15 just because you found the entrance.
It is usually not a good idea to go there before you are at least of equal level as the monsters that inhabit the area, or you will die. You can find these uberbosses in their own special areas.
