I’ve had a go at a character design for a succubus.
I’ve added a quick overview below, I’ll add posts going into more detail later if it’s of any interest to anyone.
As always this stuff is for sharing, please feel free to edit the material or add your own designs and ideas.
TL:DR
Delilah is a succubus inspired by ancient Hebrew, Sumerian and Akkadian mythology , as well as a few modern day cult TV shows/movies.

Her fight style revolves around mocking, humiliating and taunting her opponents….( as well as her minions. )
She is an exceptionally fast/agile character but physically very weak.
She has 5 fight ‘systems’:
1)High level combos release energy orbs, which she can absorb and convert into either health or shadow meter - which is versatile, however the process of doing so leaves her vulnerable.
2)She can summon Blood Beasts - liquid zombies - to do her evil bidding.
They can attack, grapple and protect.
HOWEVER, she can also beat, trip, throw + mock them too!
Summoning Blood Beasts drains her health.

3)She can summon Hex - moth shaped familiars which grant aerial and dash moves as well as a projectile attack that can stun or inflict ‘mind control’ upon her opponents.
Using Hex moves drains her shadow meter.
4)Her basic attacks are semi-charge and involve the use of her dagger.
A simple back forward punch works, BUT if you charge the move you’ll get a more powerful alternative. + She has a few unique quirks.
5)Domination - a weaponized taunt system. Through the effective use of mocking and derision you can boost Delilah’s attack power!
Stage - The Necropolis - set in Babylon, the scene is of a royal wedding from 2500 years ago, things went according to plan , everyone died, Delilah was responsible.

Ultra - involves humiliating your opponent through flashy combos and a ‘mind controlled’ finisher!
Stage Ultra - Basmu (a mythological Mesopotamian monster) swallows your opponent whole!

Ultimate - Delilah summons a Blood Beast horde, and adds her opponent to her collection.
Instinct: Blood Lust - Delilah levels up!