Evaluating archers.

Well, you can always do that – take a calculator, calculate all your possible damage from seven armies,
estimate the enemy's health...

But this is only in the case where the enemy's defense is equal to 0, or is there some formula? Only because of this, I can't calculate the exact damage dealt to a creature that is clearly unfriendly to me...:), I can only estimate it approximately...

You can also estimate the potential damage from direct damage spells by dividing the mana reserve by the cost of the spells.

This is a completely different matter. Magic cannot deal less damage due to defense, unlike a regular attack.

Also, estimate the probability of morale appearing for yourself and the enemy based on the set of artifacts and secondary skills...

But here I doubt that you are calculating the percentage of morale appearing in battle (of course, if it is not extremely high ;)), in the same way, you can rely on luck...:)

But in that case, there is no time left for the game. :D

That's for sure. But sometimes it might be worth it for offline play...:)