There is a problem here. I have already repeated this many times, but I will say it once more.
In ATB, we cannot determine how many times an angel acts per battle relative to a zombie. That is, the ratio could be 1:2, 1:4, 1:5, 2:5, etc.
And relative to a Sprite, the ratio is different again.
This means that any value of unit characteristics does not constitute balance. Because they will be calculated based on certain ratios, but the player will be able to change those ratios depending on the situation, either by stalling or simply depriving the opponent of turns with a large number of strikes.
But in a round-based system, the ratio is 1:1. Consequently, the balance fits within the range of damage variance.
Options
1. Introduction of simultaneous strikes. This would compensate for the lack of initiative among monsters.
2. The defense button becomes a "skip turn" button. High-initiative units will not be able to strike and add to their own defense. Low-initiative units will essentially be entering combat all the time.
3. Remove the Academy's bonuses to initiative.
Not a great solution, but IMHO it will bring us slightly closer to balance:)