While an interesting idea, Tris, I need to have Blood magic for summoning Demons.
Alternatively, I can make the Demons like the Tien Chi national summons, and do what you suggest... but I don't think I like 'bloodhunting' for Solars.
BTW, is there anything to prevent you from having spells that do the exact same thing (say, summon the same unit), and simply make it different reqs? I mean, the Exalted have the means to bind demons through Sorcery, but anyone can use Blood magic to summon those same demons...
Preliminary tests with the Solar end of the mod have some interesting results. Night Castes are excellent Assassins... unless they go up against HC/Knight Commanders. Caveat Emptor. As for the rest, the Dawn has severe fatigue problems, the Zenith runs around with the troops, and the Eclipse is being overlooked. The Twilight stands out as the best, but they're your only really good researchers.
It doesn't seem nearly as 'broken' as the stats might suggest... that, or I don't know how to make SCs (or when).
Scott