Harmony - Troop Symmetry

I'm not just going to replace the Inferno units from Heroes 5 with the Inferno units from Heroes 6, because what's the point??? - First of all, I'll make sure that the demons have both a low-level ranged unit and an elite ranged caster. I'll probably add an Ifrit (I originally planned to put it in place of the Nightmare) but I'm leaning towards this:
1 Imps
2 Cerberi
3 Succubi
4 Incubus
5 Nightmares
6 Ifrits
7 Pit Lords
At the same time, the Djinns of the Academy will be moved to level 6, and the Rakshasa will be moved down to level 5.

In any case, I'll finish the mechanics first (in principle, all that remains is to complete the skill wheel and revise the heroes, of which there are currently 16 per faction - the number should be a multiple of the maximum number of players, in case all 8 players on one map belong to the same faction, the number of native heroes they have should be the same).