Hand of Fate. Part 2: Despair

the thing is, when I approached the last blue structure on the island and was attacked, almost immediately 150 of his Seraphs appeared, which wiped out my units with a single blow. The hero always (no matter how many times I've played this map) appears after them. Besides, he seems to have a lot of Adepts and other units as well, and I'm sure his attack is around 50.

Anyway, I didn't mean to offend anyone, sorry, maybe I'm wrong, it's been a while since I played this map.