Veronika

"I get the feeling you knew all along that's how I would react. Quite the clever one, aren't you? ...It's a bit infuriating. Still, I'll wager your friends are seldom bored. Maybe I'll just have to join up and see. If there's room for one more, that is. I'm certain you won't regret it."

Veronika is a Dark Mage formerly a part of Lucifer's Army during the war between Lucifer and Erebus. She then became part of Erebus' army, part of The Black Hand. It is eventually revealed that she is an Ancient Evil.

Personality
Apparently burdened with an awful past that she hates to talk about, Veronika gives off a cool and unyielding personality and oozes womanly charm.

Powers and Abilities
Dark Magic: Veronika is able to to generate and manipulate darkness at will. Dark Magic has been described as the polar opposite of Light Magic, and one of the fundamental properties of this magic is that it has low speed and requires more time to cast spells. To combat this disadvantage, certain mages utilize Reinforcement Magic to channel Dark Magic through a weapon and increase their physical attributes. Another effect of Dark Magic is that it has the ability to absorb spells, namely from Light Magic, by creating small black holes or through dark spells cast at targets. However, it seems as if Veronika has no problems with casting her spells at sufficient, if not quick, speed.

Chaos Magic: Veronika can utilize Chaos Magic, magic that taps into and utilizes the chaotic forces of the universe, granting the user nigh-omnipotent scale magical powers and mastery of spells capable of warping, manipulating and/or reconstructing reality and probability as well as the very fabric of existence.

Curse-Warding Magic: This magic allows Veronika to create powerful curses which she can cast on herself and others. Veronika is able to use this magic without the need of a grimoire. However, in order to use it to its full potential, specific spells are required, which are stored within grimoires. These curses can be either harmful or beneficial and can have various effects: deteriorating a person's body, continually resurrecting a person, weakening and disabling enemy spells, detonating a person's magic power, and many other possibilities. Some of these curses carry the additional risk of being passed on to those who talk about them; this effect can be avoided by entering a space separate from the normal world. The curses' power and effects can be cut off by defeating Veronika or placing her in a space that separates her from the world.

Shadow Magic: This magic allow Veronika to manipulate and travel between shadows at will. She can slip into shadows to hide, pull others into shadows, and travel between shadows, even ones that are far apart from each other. This allows her to travel from one place to another akin to Spatial Magic. Veronika can also transport a limited number of people through the shadows with her. This magic can also be used to immobilize someone who steps into a shadow, or physically materialize shadows into hands to restrain a target.

Corpse Magic: This magic allows Veronika to infuse her mana into corpses, allowing her to reanimate and control them. Because the corpses are animated through magic, they will keep moving despite grievous injuries and missing limbs. The corpses can be stopped by negating the magic animating them, destroying the whole bodies, or inflicting sufficient damage to stop their ability to move. At its pinnacle, this magic has the potential to recall souls and revive the dead fully.

Hand-to-Hand Combat: Veronika is a very formidable and capable unarmed combatant. Her fighting style is a defensive one consisting of the usage of magic, kicks, skills in blocking, and her tail snake. Her defenses are considerable to the point she usually leaves no openings.

Genius-level intelligence: Veronika is very intelligent and is considered a scientific genius in her own right. Veronika is also very skilled in manipulating and deceiving others. She is capable of bending almost anyone to her will through methods varying from false kindness to blackmail and even torture. The best proof of her acting and manipulation skills is the fact that she managed to live unnoticed on Earth, under the nose of even Death himself.

Techniques
Ash Absorbing Formation: Veronika extends streams of cursed ash from her hands. These streams drain the mana of those who touch them, and Veronika absorbs this mana. Victims undergo rapid physiological wasting and eventually death. The streams could branch out to strike multiple targets.

Joyful Destructive Ash: Veronika gathers ash around her and creates spheres of concentrated ash. She then launches these ash-based bullets towards her target. As these ashes contain curse magic, they are able to deteriorate the target's five senses upon contact. The more of these bullets Veronika is able to land on her target, the more debilitated the target's senses become, to the point of blindness and deafness.

Dwelling of the Poison Cloud: Veronika holds out her hands and generates a large stream of poison gas. This stream could easily corrode any plant life it touches

Exploding Life: Veronika detonates the power that she has bestowed in the target. Two magic circles appear around a dark mass in the target's stomach, meanwhile the target's body swells as their magic power builds up inside of them. The target begins to shine right before they become a massive explosion.

Decaying World: Veronika generates numerous strands of runes that can dismantle and destroy opponents' spells, wrap around and bind opponents, and apply curses. While this spell is active, any rune arrays that are applied to or directed at Veronika become corrupted and weakened. However, spells of significant power and speed can be too large to weaken completely.

Unbound Slave: After placing rune arrays on another person's head, Veronika takes control of the person's body and forces them to unleash their magic. The magic is laced with curse power, increasing its strength.

Black Hole: Veronika creates a small black hole which draws in and absorbs other spells. It then shortly paralyzes her if she is somehow in contact with her spell. However, the hole's size is limited to about five meters.

Black Cocoon: Veronika creates a spherical shell of darkness around herself. The sphere can also be used as a means of transport.

Dusk: Similar to Black Hole, Veronika holds out her hand and creates a small black hole over her palm. The suction draws in and absorbs other spells and could be used to immobilize opponents.

Dark Binding: Veronika creates ropes composed of darkness which wrap around the target, restricting their movements and magic.

Black Moon: Veronika takes control of the surrounding mana and then creates a Black Hole overhead, expanding the range of its absorption over a defined area. She is also able to discriminate what gets absorbed by the spell, such as erasing an opponent's spell while leaving an ally's spell unaffected.

Dark Garden Invitation: Veronika places her hand on the floor of a room, and shadows spread out, covering the floor and extending up the walls. Hands of shadow rise up from the floor, grab onto anyone else in the room, drag them down into the shadow, and drop them into another chamber.

Dark Prison Hunting Ground: After taking control of the surrounding mana, Veronika spreads out their shadow, shrouding everything in shadow and cutting off all light. Veronika's presence is also hidden, allowing her and her clones to strike her opponent without being sensed.

Shadow Corridor: Veronika faces a doorway and extends the shadow from under her feet to the doorway, covering the entrance and forming a long hallway. At the other end of the hallway, an opening forms to the desired location. This spell can be used to cross great distances in seconds and allows for the movement of several people at once.

Monument of Atonement: Veronika creates two halves of a large black tomb above and below her and the target. The top half of the tomb has a large gravestone decorated in runes. Hands of the shadow reach up from the bottom half and restrain Veronika and target, as well as pull down the top half. As the two halves meet, anyone inside is trapped within a shadow world that does not physically exist and contains no light, life, or death. The tomb then sinks into the ground and becomes a large seal. This spell requires an immense amount of magic power, and risks Veronika's own life since she is trapped along with the target. Despite the spell's strength, powerful magic that can affect invisible concepts could be used to breach the seal. If broken, the seal expels everyone trapped within.

Vector Arrow: Veronika summons arrows that, like snakes, move rapidly towards her target. Vectors seem to assume almost tangible qualities, able to cut and pierce opponents like blades. Veronika also can manipulate these arrows to alter their direction and size, making them extremely versatile for direct offensive attacks or to redirect opponents' movements.

Analyze Decompose: A spell in which allows Veronika to shoot her target with her Vector Arrows and cause it's Magic to break down any coating from the target.

Vector Storm: Veronika surrounds herself with numerous intertwining Vector Arrows, projecting upwards from the ground and resulting in a spinning physical shield, capable of shielding her from attacks.

Compress Vectors: This spell surrounds the subject, compressing them into a space the size of a small ball.

Vector Plate: Veronika is able to summon a plate in which is able to propel the subject the direction in which the vector she created points in, including herself even. She can also perform this spell in midair and use it for high speed movement.

Tail Snake: A vector protrudes from Veronika's backside like a tail. Pliable but strong, the Vector stretches while still keeping her entire weight balanced so she can dodge with significant flexibility, even supporting her weight while holding her upside down.

Soul Abductor: Veronika summons back a sacrificed soul and returns it to their body, removing any injuries associated with the person's death. The spell can also activate after Veronika's own death. Veronika is limited to summoning the souls of those she has known for a long time. Additionally, if the target's original body is unavailable, their soul can be placed into a similar or cloned body.

Puppet Shadow: Veronika uses attacks by adding a personification to her shadow, turning it into a humanoid being. At her will, she can increase the length of her shadow to strike her opponent from far away and can increased the amount of shadow puppets to hold or grapple it's master's enemy.

Aga'hna
Aga'hna and Veronika are some of the oldest being in the universe, and unlike Aga'hna's brothers and sisters in the form of the other ancient evils, Veronika is her biological older sister. They grew up together in a parallel universe that has long since been destroyed, and while Aga'hna took up the mantle of protector and fought off the being who destroyed her home and its allies, Veronika got left behind, saved by her sister, and spent many years hiding right under the noses of the creatures who wished to erase her very existence.

Quotes

 * "Ugh, it's almost painful to watch... Just how hopelessly ignorant can someone be?"
 * "Might be time for a manicure... My magic always feels its strongest when my hands look their best."
 * "This world's cultures are simply fascinating. If you would allow me to study them, it might aid you too."
 * "I used to work for a very unsavory character. And before that, well... it's really none of your business, is it?"
 * "It's a shame if a woman doesn't look as powerful as she feels. Don't you agree?"
 * "Spending time with you helps me forget some painful things. Thank you."
 * "My goodness. You really are but a child."
 * (Veronika sharing what happened to her kind) "The dark, primordial void. The incarnation of everything bad. Chaos. Disorder. Darkness. Destruction. He did God dirty too. And who did he blame for his wrongdoings? Us. That's when everyone came together to get rid of us. But we weren't going down without a fight. [...] You see, God liked to create. He created all these worlds, universes, and then they would all... Disappear. They were destroyed. It kept happening over and over again. God was lonely. He, The Void and The Grim Reaper were the only beings in existence, and they were... far too different to be good company. So God wanted to create. He kept creating, and creating... that's what he did. The Void grew jealous of this, of everything God created. So he destroyed them. Each and every one of them. Universes, worlds lost to a being so fueled with envy... and who did he blame when he did all these horrible things? He blamed us. But we were innocent. Yet he had fooled everyone. And what did they do? They banished us to the world between worlds... or, they thought they got all of us, but... they missed one."