Devourer of Souls with +10 fear keeps retreating!

[Argitoth]

Yes, blessing is a good idea. But my devourer of souls is casting plenty of spells, quickness, fireshield, invulnerability, and getting ethereal, luck, and regen spells cast on it by my shaman. With a 1-hit kill attack (he has two rings that give more attack), he is a force to be rekoned with. However, I'd never put him alone.

I shouldn't have to put my devourer of souls alone. I want to use him in an army. He shouldn't be routing like this. He's taking virtually no damage. He's just routing because his morale goes down as units die....

oh wait... do elemental royalty retreat if the army is retreating? If that's the case then there's no reason why devourer of souls shouldn't at least have 30 moral just like the rest of the great SCs in this game.