2K HP MONSTERS ARE SUMMONED.

Try reinstalling the game. Once, I had a bug where all creature specialists gave them huge bonuses; for example, Wistan could easily take two Dwelling of Hydras with only 20 lizards. Reinstalling the game fixed it.

Here again, he came with a significantly larger stack. There were 2-3 elementals of each type in the Castle, and as a result, a 400 HP elemental is summoned and destroys everything. I reinstalled the game, but it didn't help, although now they are no longer summoning 2k creatures, but rather 200-400.