Even if the player blocks these random events, it is still impossible to achieve consistent damage from units. This is a completely random value within a certain range. And here, tactics can be adjusted depending on the changing balance of power during the battle.
However, I cannot agree with this... Based on my own gaming experience, I can say that it is often possible to repeat the same damage from a unit attacking an opponent when replaying the battle... It is difficult to say how a particular outcome is determined (I personally cannot :)), but I think that the core of the game has a certain system that simply repeats itself over time...
Here is a related question:
How does the Clone spell behave? I mean, what is its duration?...
P.S. We are having a discussion about this, and I referred to "spall power," but is that correct? I want to know...
Also: what types of spells last throughout the entire battle, regardless of the spell's power? (for example, like Destructive Ray...)