Harmony - Troop Symmetry

I ran a few tests and decided to edit the spells a bit – I'm too lazy to describe it in detail, so here's a screenshot (I think it will be clear). Don't pay attention to what's darkened; the two un-darkened rectangles are what's interesting to you: the lower right one explains that the spells in the red rectangle depend on the level, the spells in the blue rectangle depend on magic power, the spells in the purple rectangle depend on both level and magic power, and the spells in the gray rectangle have a weak dependence on the hero's stats.

The idea of dividing them into subgroups based on their dependence on level and magic power was taken from WGE – respect to Nargott!!!

Added 3 hours 36 minutes ago
Question about speeding up/slowing down – these spells depend on the level in light/dark magic and do not depend on (or weakly depend on) magic power.
The first option is to give a large bonus (+100%), but make the effect short-lived (a couple of turns), that is, we get an instant effect that applies at the moment of use (somewhat similar to the effect of encouragement and stunning).
The second option is to give a small bonus that increases with the level of the school (neophyte/basics/developed/skilled, respectively 10/20/30/40%), but at the same time, as the level of the school increases, increase the duration of the effect (with a small bonus to initiative, the effect is all the more the longer it lasts).
I am leaning towards the second option and haven't tested it much yet (I only tested it within the framework of one battle).
The formula is as follows:


Added 10 minutes ago
The third option is the same as the second option, but change the bonus from 10/20/30/40% to 10/20/40/80%