Round table

If you're interested, it's a similar situation where the Nagas simply ignore the attack on the Wonders and expose themselves to Ogres (change the extension to mp4).

Yes, I see. Well, for now, I can't explain this. Perhaps it's some kind of bug that's difficult to catch in the game's logic.

I meant that the damage from another stack is directly subtracted from the number_of_creatures * Fight Value.

No, it's not the damage itself that's subtracted, but the value of the damage. That is, the value of the creatures that die from this damage (their number can be fractional). And the value of 1 creature is already the Fight Value. At the same time, a bonus is given to the value if the top creature in the stack has a small amount of HP and it is killed.
However, if the AI assesses the player's army as significantly superior, in most situations it stops taking into account the value of the creature and replaces the value of any creature with some constant - i.e., it only takes into account the number of creatures that can be killed.