Another suggestion!
I noticed one interesting thing! All fantasy games are based on mythology in one way or another... the foundation is Celtic myths... with Greek myths added... but they missed such a great theme as Eastern mythology... For example, Egypt! It would be easy to create a faction based on their myths!
Combat units:
Priests of Imhotep - specialization - summon subservient undead to help :) + can resurrect one of their own... :)
Mummies - weak units, weak attack, but considering they are made of dead flesh, they block XXX% of damage :)
Tomb Guardian - an incorporeal spirit guarding the entrance to the pharaoh's caves - guardian of the afterlife gates = immune to arrows... + special ability - after an attack, the life force of the attacked enemy begins to drain from them (each turn = XXX% hit points)
Warrior of the God Ra - the basis of the infantry. Special ability - attack with sunlight...
Mounted units - Arabian cavalry... (special ability - destroys enemy supplies of... well, you know... :))
Sphinx... - a higher-tier unit... special ability (in addition to asking riddles) - during an attack, there is a % chance to inflict berserk or hypnosis on the enemy... or "daze," so that an attack aimed at the Sphinx can backfire on a friendly unit standing nearby...
+ one lower-tier unit - let's call them "humanoids"... I just don't remember what these creatures near the entrance to their "City of the Dead" are called... I think they are somehow connected to Anubis... special ability - ???? let them be archers :) + when shooting, they cast a spell that reduces the enemy's initiative (damage, defense, potential) :)
In general, it will be a rather nasty faction :)))))
.....