Harmony - Troop Symmetry

I've made changes to the spell placements within the schools of magic – the result is quite interesting:
---darkness-----------light----------summoning-----------chaos------
fire wall-----blindness-----teleport------earthquake

Only the fire wall's level has changed – now it's a fourth-level spell; I'll also need to recolor it or something similar – it will be called "wall of shadows."

For now, it's unclear what the purpose of this is and why these decisions were made; they are not at all obvious.
Out of everything described above, I could personally agree only with the teleport spell, and even then, only if it can be cast not only on friendly units but also on enemy units (in that case, it would logically fit better under summoning than light). I tried this version, but then I reverted it: teleporting enemies turned out to be too overpowered and less interesting (just teleport archers to the front and you win).