Dark Queen

D-750 (AKA Dark Queen) is an experiment, and to date the BEI's most powerful.

Appearance
She is a 5ft tall Black Dumbo Demonling with fair skin, Tentacurl Hairstyle, and Black Eyes.

She wears a Pearlescent Crown, an Enchanted Robe, a long skirt, and a pair of School Shoes.

Appearance (Fury State)
Once enraged, she grows in height and bulks up, reminiscent of Kale from Dragon Ball. Also (like Kale), her hair turns green and floats around, and her eyes blank out, although they become black instead of white.

Behavior and Personality
Dark Queen's normal persona is that of a tyrannical, cruel ruler, often making one think she actively enjoys taking the lives of others and torturing people, While this is true for those who try to kill or hurt her, no one knows why she does this to innocents.

Dark Queen prefers to act tough and evil when around strangers, believing such a facade will protect her, which often does.

When enraged, she goes all-out in a fight and does not hesitate to kill her foes, often tearing up their organs with her magic.

Backstory
TBA

Story in LoE
.

Abilities
Aside from having knowledge in martial arts, her own pool of dark magic has no bounds, pulling energy straight from the underworld itself which gives her the following abilities:

Shadow Mass
She can manifest dark masses with various shapes other than tentacles, which seems to be her preference.

Internal Bleeding
She casts an usually instant kill spell that allows her to manipulate a person's insides however she wants.

Debuff Spell
She casts a detrimental spell that makes an enemy's attacks weak against her magic.

Nightmare Reliving
She can make someone experience their worst nightmares.

Invisibility
She can make herself invisible.

Attack Warp
She can move before her opponents and attack twice in a single second.

State of Fury
When enraged, she gains a huge buff in magic damage, durability, speed, and size.

Spectral Manipulation
She can manipulate souls at her own will (either be it take them away, destroy them, or swap them into another body).

Servitude Serum
She can create the eponymous fluid from her body that assimilates and enslaves those submerged in it, even partially (because in both cases the victims become loyal to her).

Serum Buffing
If the victims submerged in her Servitude Serum have any sort of magic powers, she can use them to enhance her already existing abilities.

Weaknesses
Despite her incredible amount of magic, she is essentially a glass cannon. Her body cannot take as much damage as she can give.

Light-based magic is also one of her biggest weaknesses.

Likes

 * Power
 * Bacon and Eggs
 * Hugs

Dislikes

 * Getting her crown stolen
 * People trying to look under her dress
 * Incompetent fools

Fears

 * Photophobia
 * Beings more powerful than her

Enemies

 * Mostly everyone
 * Kraken Inksworth

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Underworld
Dark Queen's DNA and bodily make up is made with demon DNA and the power of the darkness and shadows. And since she also draws power from the Underworld, she has this book.

Female
Well, you know.

Villains
Well, you know.

Undead
Dark Queen's Servitude Serum effectively makes those infected by it zombies, as cold and undead as the living dead.

Trivia

 * Infobox image credit goes to Monster Master FightingLucario!
 * She was originally meant to be the main antagonist of the Jeiceverse series, but she was replaced by Kraken Inksworth.