Here are the character status. I've updated Xenovia's and we can finally see how overpowered Ophis is.

Name: Xenovia Quarta (Enhanced Human)

Class: Tactical

Strength: C+

Speed: C+

Endurance: B

Agility: C

Reflex: C++

Magic: D

Reserve: C+

Skills/Trait:

Swordsmanship [B]: Shijou Momoka's continued training increase her skill yet again and she is still improving.

Mind's Eye [C]:Xenovia develops the Mind's Eye to counter enemies of superior speed like Haruka. It's still improving.

General Magic [D]: Xenovia started learning magic under Shijou Momoka's tutelage and is doing quite well. Momoka planned to teach a True Magic to Xenovia once she reaches a certain level.

Holy Sword Wielder [B]: As a natural born wielder, Xenovia can wield high-tier Holy Sword naturally. Her affinity is with Durandal.

Weapons/Sacred Gears/Equipments:

[Twilight] [A+]: Xenovia's main weapon. It is a powerful magic sword that can utilize other people's magic through the use of cartridges. Xenovia uses Twilight to great effect during her fight with Tatenashi, managing to match the powerful opponent.

Name: Shidou Irina

Class: Tactical

Strength: D

Speed: D+

Endurance: D

Agility: D+

Reflex: D

Magic: E

Reserve: E

Skills/Trait:

Swordsmanship [C]: Irina is a skilled swordswoman and still strive to become better.

Holy Sword Wielder [C]: As a decent Holy Sword wielder, Irina can use mid-tier holy swords like Yuuto.

Weapons/Sacred Gears/Equipments:

[Mass-production Light Sword] [F]:Exorcists' standard weapon. Not really useful against higher level opponents unless the Exorcist in question is monstrously powerful. Still useful against common grunts.

[Excalibur Blessing] [C]: One of the seven Excaliburs. Has the lowest combat ability since it is mainly used for rituals. Can enhance an Exorcist's power based on faith.

Name: Kiba Yuuto

Class: Tactical

Strength: D

Speed: C

Endurance: E

Agility: D+

Reflex: D+

Magic: F

Reserve: F

Skills/Trait:

Swordsmanship [C]: Yuuto is a competent swordsmans who follows in Haruka's footstep as a swordsman. He is as skilled as he is in the original series at this moment.

Holy Sword Wielder [C+]: Yuuto became a Holy Sword Wielder through Shijou Momoka's research which is different from Galilei's. He is the first success and can improve in his affinity. At this rank, he can wield C-rank holy swords and is close to achieving B-rank.

Weapons/Sacred Gear/Equipments:

[Blade Blacksmith] [C]: Yuuto's sacred gear that can create holy swords.

[Excalibur Destruction] [C+]: One of the seven fragments of Excalibur and the second strongest overall due to its attack power.

Name: Sophia Brave

Class: Tactical

Strength: C

Speed: C+

Endurance: C

Agility: B

Reflex: B

Magic: A+

Reserve: S-

Skills/Trait:

Swordsmanship [C+]: Sophia trained in the use of swords after Twilight finally come to her possession. She has never been much of a fighter but her new status and the war situation made her learn it the hard way. Though she can't match the likes of Reika, Tatenashi, or Athena, she is still good enough to be called above average.

Flight [B]: Sophia has been trained to become a skilled flyer by her comrades.

Mechanical Genius [EX]: A true genius in engineering surpassing even Azazel. She can create Longinus-class sacred gear and powerful magical weapons given time and material. She's the one who finalizes Reika's sacred gear which is a longinus-class.

Magic Smithing [A++]: The ability to create powerful magical weapon from ordinary weapon or even base material.

Steel Alchemy [A++]: As an engineer and a smith, Sophia is skilled in manipulating steel to alchemy. Her skill is so great that she can create divine-class construct using steel though it will drain quite a lot from her.

Heaven's Feel [B+]: The Third True Magic. This is the Magic Sophia use to give power to her works. The extent of her power with this magic is unknown but she is good enough to be a close match to Justeaze Lizrich Von Einzbern.

Denial of Nothingness [D]: Sophia's secondary True Magic. She uses this mostly to create materials though she cannot create legendary materials like mithril due to her level in this True Magic.

Librarian of Stored Knowledge [A]: An ability to instantly recall clearly a knowledge from memory.

General Magic [A++]: Sophia is the most skilled in general magic among Reika's team and works as a long-range support.

Weapons/Sacred Gear/Equipments:

[Phoenix Zero] [A++]: Sophia's sword. It is made of a special red crystal and Orihalcum. Sophia personally crafted this sword and remains her best work as far as sword goes. It looks like a red and black version of Twilight but without the cartridge system. It has superior cutting power to Twilight and is mainly a fire element. The flame it generates is comparable to a star in heat and power.

[Portable Magic Tool Holder]

Name: Athena

Class: Strategic

Strength: A

Speed: A

Endurance: A

Agility: A

Reflex: A

Magic: A

Reserve: S+

Skills/Trait:

Weapon Mastery [A]: As a goddess of war, Athena could use any kinds of weapon from sword to a sickle and even a slingshot to great effect. She's particularly skilled in bladed weapons and favors the use of scythe as it is her main weapon. Sadly, her weapon mastery skill declines as it enters into firearm area and the further it is from the kind of weapons Athena is familiar with in her time, the harder it is for her to use. She can use handguns and rifles but she won't like it and thus her skill declines due to her dislike of the weapon.

Flight [A]

Serpent's Evil Eyes [EX]: Overpowered mystic eyes of petrification.

Denial of Nothingness [B+]: True Magic is one of the few things that is outside of Athena's reach when she was a heretic goddess and therefore had to learn from scratch. Her primary affinity is with Denial of Nothingness and her level is high enough to create legendary materials or a completely new material. She's the one who created the powerful elemental crystals that Sophia used to make weapons.

Heaven's Feel [C]: As a goddess of the underworld according to her original world, Athena has an affinity with soul which allows her to learn Heaven's Feel. She's not interested in it though and only learn as long as her interest persists. She's skilled enough that her ability with soul magic is equal to Sepiroth Graal.

Librarian of Stored Knowledge [A]: An ability to instantly recall clearly a knowledge from memory. Athena as the goddess of wisdom has this skill

General Magic [A]: Athena is a very accomplished magic user as the goddess of wisdom. She could've become the best magic user among the team but as she prefers direct combat, she's not very effective as support and thus not as effective as Sophia in general magic.

Divinity [A]: As a goddess, Athena has a very high divinity as expected of a goddess.

Divine Authority [EX]: The power of gods. She still possess all her powers as a heretic goddess and still works the same way even in the different world.

Weapons/Sacred Gear/Equipments:

[Scythe of Athena] [A]: A scythe created from Athena's power. Has darkness element.

[Shield of Aegis] [A]: The famed shield of Athena.

Name: Ryuusei Ophis

Class: Stellar

Strength: S

Speed: S

Endurance: S

Agility: S

Reflex: S

Magic: S+

Reserve: EX

Skills/Trait:

Dragon Temperament [E+]: Ophis has the lowest rank of any dragons in temperament. She is not easily angered, only annoyed. She is lazy and doesn't have a lot of pride. Don't think that she can never get angry though.

Dragon Magic [EX]: As one of the earliest dragon to exists, Ophis has mastered every dragon-based magic to the point that her only match is her father and mother who CREATED the magic.

Martial Art [EX]: Ophis created her own style eons ago and had reached the point beyond mastery.

Magic Resistance [EX]: No magic could touch her unless she allows them. Only high-end divine magic and True Magic could harm her.

Infinity Rule [EX]: The Fourth True Magic. She has not deemed anyone worthy to face her using the Fourth but as an ancient Dragon whose father's power serves as base for the Magic, Ophis is a master of the Fourth.

Kaleidoscope [C]: As Ophis is not really interested in Kaleidoscope, she only reach an acceptable level of proficiency in the Magic.

Dragon Transformation [EX]: Ophis' dragon form is extremely powerful and absurdly large. She will never transform unless she's as far away as Jupiter. She has a lesser dragon form though but if she did take her true dragon form, shit really goes down.

Flight [A]: Ophis is a very skilled flyer and can easily handle any aerial battle.

Name: Shijou Momoka

Class: Stellar

Strength: A++

Speed: S

Endurance: A+

Agility: S

Reflex: S+

Magic: S++

Reserve: S++

Skills/Traits:

Kaleidoscope ? [EX]: Momoka is one of the many user of Kaleidoscope and one of the three who had mastered it to such a level which includes Zelretch and her own rival. Momoka has created her own version by The Second with her original magic, Black Door, and has created an offense-oriented Kaleidoscope. She is now trying to teach her son her Kaleidoscope.

Heaven's Feel [D+]: Momoka's skill in Heaven's Feel is adequate that she can interact with soul but she is not good enough to use its more powerful abilities, making it as a convenient side-ability at best. She's at least able to reverse the effects of reincarnation items like the Evil Pieces or enhance its power.

Spatial Magic [A]: As the strongest spatial mage... or sorceress, this level is expected of her. At this level, she can bend space easily by thinking though utterly crushing her opponents using her spatial magic is not her style.

Swordsmanship [A++]: Momoka is very skilled in sword and not many could match her, not even Haruka though he is getting there.

Magic Resistance [A++]: Momoka has a very high magic resistance. At this level, she can ignore all mortal magic but she still needs to keep an eye out once it reaches divine-class.

Flight [A]: Momoka is very skilled in aerial battle from her years of experience.

Divinity [A]: As wife to the Third Trinity, she's of course no longer human and closer to divinity.

Weapons/Sacred Gear/Equipments:

[Momoka's Compass] [A++]: A weapon created by Sophia long ago using her magic smithing. After accompanying Momoka faithfully and added with a few Trinity-class enchantments, the previously C- ranked weapon became an A++ ranked divine weapon. It's stand-by mode is a pencil and has been made indestructible using Fifth.

Name: Melia Sitri

Class: Strategic

Strength: A

Speed: B+

Endurance: B+

Agility: B

Reflex: A

Magic: A

Reserve: S

Skills/Trait:

Swordsmanship [A]: Melia is a very skilled swordswoman who can match Haruka. Her weapons of choice are a pair of short swords called Sera. She favors dual-wielding.

Flight [A]: Melia is very skilled in aerial combat due to intense training by her father and mother which involves dodging attacks coming from all sides.

Heaven's Feel [C]: Melia has started her study of Third Magic and is gradually improving under the tutelage of her mother.

Water Magic [A]: Melia is a master of controlling water and can even extract water from moisture in the air and multiply them.

Ice Magic [A]: Melia is very skilled in ice magic like her mother. She can instantly freeze a large town if she so wishes.

Weapons/Sacred Gear/Equipments:

[Sera -Blades of the Primordial Assassin] [A++]: A pair of short swords utilized by Kazuya's deceased wife eons ago. It fell to Serafall's hands and then to Melia as Serafall prefers magic. The blades have become Melia's main weapon. It is an all-slaying weapon like Haruka's 'Sophia'.

Sophia Brave will enter the field in the next arc. As we all know, next arc will be the Excaliburs and by seeing Sophia's skills... I'll leave it to your imagination. Anyway, Ophis and Melia's stat is out. Melia is very strong while Ophis is totally overpowered. Momoka is also overpowered even by DxD standard but she is technically dead so she's not really as powerful as that. It's her stat in her prime. Since Mimic is with Haruka, Irina will get Blessing while Yuuto will take Xenovia's place as Destruction's wielder and Irina's partner. I'm thinking of giving Irina to Yuuto here but there is always Dulio. I'll decide later.

Update. I've added Athena's stats as she will have a role in this arc. Again, a reminder. This Athena is the same Athena from Campione and somewhat out of character but the same power-wise.