Eater of the Gods unkillable?

[Tuidjy]

At least one of the doom horrors has multiple forms, one of which is hard to see.
It can be still killed, but it is not easy. This is what may have happened,
check the -dddd log.

By the way, some doom horrors are simply stupid. Like the one that does 320 points
of irresistable, always hit damage per turn. I have never kept my opinions about
irresistable melee damage to myself... I like the doom horrors being super tough.
I do not like them being able to win with abilities that are simply cheap.