just a hint:
NEVER use Spells like Protection/Mass Protection on units with Heat Aura(like Devils ).
These units lose there 100% Fire Resistance and afterwards they hurt themselves with their own Aura
I had this Problem with Abysia some days ago,because I mistakenly sent a Warlock with 1 Nature together with my army,who then happily casted Protection on all my Abysian Infantries and Spell Casters...this was very,very ugly and I lost some important commanders because of this
