(Kevin Kaslana - Yirui Liu)

https://youtu.be/r1vXCUbSTHg

Adam: Kiana Kaslana. Raiden Mei. Himeko Murata. You've seen what they're capable of when we introduced them here in DEATH BATTLE and they're one of the strongest Valkyries the Honkaiverse has to offer in the Current Era. But today we're taking a look at one of the strongest and oldest people in the Previous Era, over 50,000 years ago. His name his Kevin Kaslana. Kevin had transferred to a new school 3 months ago. He quickly became popular due to his athleticism and looks. Many girls found him attractive, and thus called him the "Prince". But instead of paying attention to his admirers, his sights were set on another girl, MEI.

Shadow: She wasn't interested in love, but that didn't dissuade Kevin. He would constantly try to get her attention: pulling little pranks on her and talking to her about her scientific discoveries. He eventually made an impression on her. It's also worth noting that another member of Fire MOTH, Su, was Kevin's best friend back then. When the 3rd Eruption hit Nagazora, Kevin tried to lead MEI to safety. They were stopped by a MOTH agent, who said he was tasked with protecting MEI, as her research was of great interest. They invited MEI to join. Kevin, refusing to part with MEI, joined MOTH as a soldier.

Vanessa: 3 years later, Kevin defeated the 6th Herrscher. But the 7th Herrscher, a former comrade by the name of HIMEKO, was much harder to defeat than the last. MEI and Mobius came up with the idea of MANTIS to fight her. Kevin volunteered to be one of the first test subjects, and was injected with Parvati genes to counter the flames. He survived despite all odds. Kevin led the MOTH soldiers and defeated the 7th Herrscher, using his new ice powers to impale her. However, as a consequence, the MANTIS treatment had lowered his body temperature to -22 degrees Fahrenheit, which meant he could no longer be too close to humans. This also meant he couldn't hold MEI in his arms, she would get hurt if he tried.

Shadow: As a MANTIS, Kevin became one of the most powerful soldiers in history. His subzero body temperature meant he was able to unleash the full might of Shamash without dying. Due to this, he single-handedly defeated the 9th and 11th Herrschers. But humanity wasn't prepared for the 12th Herrscher. Despite their best efforts, the 12th Herrscher launched their own nukes at the 3 last cities humanity had left. Kevin blamed himself for not thinking to defend the computers. Kevin and Fu Hua talked for a bit outside of the cell that used to contain the Herrscher's host. Kevin tells her that he never cared about humanity nor about Honkai. He says he joined MOTH for selfish reasons, and that he couldn't bear to tell MEI that. He muttered that he's the most terrible person to have ever lived, and everything is his fault. But, with a change of tone, he announces that he won't give up. "Humanity will live."

Adam: During the fight with the Final Herrscher, Kevin managed to stun it for 12 hours, which gave people time to evacuate to the cryogenic pods. When Kevin returned to Earth, he found MEI dead, a victim of Honkai poisoning. However, MEI had created a "test tube baby" using Kevin and MEI's genetic materials. Kevin named him Adam, after the first man on earth. With tears in his eyes, he vowed to defeat the Honkai, no matter the cost. His last words to Fu Hua before cryogenic sleep was, "Humanity shall defeat the Honkai".

Shadow: At some point after waking up, he travelled with Su to see the births of new civilizations. This included Egypt and Greece. After a while, Kevin decided that he must begin work on Project STIGMA. See, civilization and Honkai go hand in hand, the more a civilization resists, the more focused and stronger the Honkai becomes, even going as far as to send Herrschers. Project STIGMA plans to exposed people that have inactive Stigmatas to Honkai energy to forcefully awaken their Stigmatas, therefore becoming part of the Honkai and preventing them and the Herrscher of the End from appearing, theoretically putting an end to them.

Vanessa: Huh, that doesn't seem so ba-

Adam: The problem, however, is that not everyone can survive even possessing an active Stigmata, let alone trying to force an inactive one. As a result, 99% of humanity will die as a result. His best friend Su didn't like that and after a battle, sent Kevin down to the Sea of Quanta via Project Regulator. But Kevin escaped the Sea after Bronya dived into the Sea of Quanta to rescue Seele and resumed his plans to continue Project STIGMA.

Kevin Kaslana

Superhuman strength, endurance, speed and reflexes

High Honkai energy reserves

Energy Manipulation

Pyrokinesis

Cryokinesis

Self-Sustenance

Energy Manipulation

Matter Manipulation

Dimensional Travel

Telepathy

Flight

Resistance to Information Manipulation, Existence Erasure, Death Manipulation, Mind Manipulation, Illusion Creation, Memory Manipulation, Gravity Manipulation, Black Hole Creation, Transmutation, Deconstruction

Immune to Dream and Time Manipulations

Authority of Reason (Creation, Technological Manipulation and Matter Manipulation)

Authority of Stars (Gravity Manipulation and Black Hole Creation)

Authority of Thunder (Electricity Manipulation and Paralysis Inducement)

Authority of Dominance (Duplication, Power Absorption and Bestowal)

Authority of Death (Corrosion Manipulation, Construction and Deconstruction)

Authority Wind (Air Manipulation, Weather Manipulation, Purification and Healing )

Authority of Fire (Fire Manipulation)

Authority of Sentience (Mind Manipulation, Illusion Creation, Dream Manipulation and Memory Manipulation)

Authority of Ice (Ice and Cold Manipulation)

Authority of Binding (Power Nullification, Energy Manipulation and Forcefield Creation)

Authority of Corruption (Corruption and Data Manipulation)

Authority of the Void (Space-Time Manipulation, Dimensional Manipulation, Dimensional Travel, Teleportation, Portal Creation, Battle Field Removal, Sealing, Clairvoyance, Pocket Reality Manipulation, Limited Reality Warping, Intangibility and Durability Negation)

Authority of Finality (Possess the power of the previous Authorities)

Active Honkai Reaction

Signets of Deliverance

Parvati: Kevin's initial gene donor, which granted him the ability to create and control ice to counter the flames of the Herrscher of Fire.

Tlaloc: One of the gene donors for the testing phase of Project CHIMERA.

Couatl: A Honkai Beast from the Sea of Quanta.

Kukulkan: A giant serpentine Honkai Beast adapted to the Sea of Quanta, which was Kevin's preferred form during his imprisonment, and was thus the source of his nickname "The Serpent" prior to being revealed as the leader of World Serpent.

Mexicatl: A Honkai Beast split among a number of Quantum Shadows each named after a deadly sin, all of which are connected to a single Umbreist core.

Garuda: A phoenix-like Honkai Beast that was also the primary donor for Hua. It grants control over flames and an extremely powerful regeneration ability. One of Kevin's more powerful donors, as Hua using Active Honkai Reaction was able to force Kevin himself into also using Active Honkai Reaction to defeat her.

Judgement of Shamash

Might of An-Utu

Diabolical Kevin

This Worldly Beast

Deliverance Kevin

Vanessa: Thanks to the MANTIS surgery, Kevin has developed numerous abilities from several Honkai Beasts. First is Parvati, who controls ice and Kevin's main elemental weapon, which was strong enough to contend with the Herrscher of Fire's flames, but he also has Garuda which controls fire too and Kukulkan, which is a giant serpent he can turn into after being imprisoned. But he's not without a weapon, his most used is Judgement of Shamash, a Divine Key made with the Core of the Flame Herrscher. And its upgraded form Might of An-Utu, is way more powerful.

Shadow: Kevin can also tap into his Active Honkai Reaction form, which allows MANTIS soldiers to transform into a chimera of multiple Honkai beasts thanks to the genes in them via Project Chimera. In Kevin's case he turns into his Diabolical form which resembles an abyssal demon, having black colors, horns and all that. But that's not all. He also has the Signets of Deliverance and Discipline. Deliverance increases one's Ultimate and is equipped with two long weapon handles that float around him and that can manifest either blades or bolas and Discipline gives an order that can't be refused, though Kevin had to trade his ability to dream to gain Aponia's Signet of Discipline.

Adam: However, near the climax of Part 1's story, Kevin has gained the Authority of Finality. The Authority of Finality grants him the powers over all things Honkai and the abilities of other Herrschers. This ranges from the being able to create objects that Kevin can think of, complete control over space-time and to reset everything. He shouldered it bit by bit until he gained complete mastery over it. But wait, there's more. After absorbing Projects STIGMA, CHIMERA and the Authority of Finality, Kevin transforms into This Worldly Beast and Deliverance Kevin.

Shadow: This Worldly Beast is a crystallization of Earth's history and the Chimera of the hundred-over Honkai Beasts that compose Kevin's MANTIS genes. Each of its arms holds a form of core that represents an era, from the Paleozoic, the Mesozoic, and the Cenozoic. And Deliverance Kevin is just his AHR form in steroids and with the Authority of Finality to boot.

Feats

The strongest soldier of MANTIS in the Previous Era

Escaped the Sea of Quanta

Stripped Bronya Zaychik of her Herrscher powers

Killed the 6th, 7th, 9th and 11th Herrschers of the Previous Era

Killed 3 Herrschers without a Divine Key. Divine Keys are Previous Era weapons made out of Herrscher Cores

Resisted Abyss Flower, which is made from the Herrscher of Death's Core

Matched Durandal to a draw in base form

Durandal struggled against ELF Kevin, who only possessed 1% of Kevin's powers

Defeated Su, Fu Hua and Herrscher of Sentience

Bested Herrscher of Flamescion Kiana, Herrscher of Thunder Mei and Herrscher of Reason Bronya simultaneously

Held his own against Herrscher of Finality Kiana, Herrscher of Origin Mei and Herrscher of Truth Bronya

Battled the Previous Era Final Herrscher for 12 hours

Superior to the other Thirteen Flame-Chasers

Capable of moving inside Kiana's Time Fracture as Deliverance Kevin, which was capable of freezing his other forms

Immune to Fenghuang Down's powers

After possessing the Authority of Finality, Deliverance Kevin has surpassed even the Herrscher of Finality in the Previous Era

Reunited with MEI and the other Thirteen Flame-Chasers in the afterlife

Shadow: Kevin has shown why he's both the most powerful hero and the deadliest villain in Honkai Impact 3rd's history. He's killed 3 Herrschers without a Divine Key, has escaped the Sea of Quanta and managed to stun the Previous Era's Herrscher of Finality for 12 hours before being forced to retreat. He once took Bronya's Herrscher powers away and managed to stalemate Durandal, Schicksal's strongest S-Rank Valkyrie, in his base form before Otto stopped them. And thanks to the Signet of Discipline, Kevin is rendered immune to the effects of Fenghuang Down, which can mess with a person's mind and giving them false realities and requires great effort to be able to even detect its illusions, let alone try to break out.

Popup: Sirin, who had the power of 4 Gems and capable of tanking supernovas and creating entire solar systems, was able to see through Fenghuang Down's illusions but was unable to break out on her own without the Will of the Honkai's aid.

Adam: Kevin is also able to match his former Flame-Chasers allies Su and Fu Hua and bested the Herrscher of Sentience. In their first battle, Kevin overpowered Herrscher of Flamescion Kiana Kaslana, Herrscher of Thunder Raiden Mei and Herrscher of Reason Bronya Zaychik all at once with little effort. Hell, even after the trio gets some serious upgrades by becoming the Herrschers of Finality, Origin and Truth respectively, Kevin was still holding his own for a long time before being overwhelmed and Kiana was chosen by the Cocoon of Finality to become the current Finality Herrscher. Meaning he's definitely comparable to the Current Era Herrschers.

Vanessa: And let me tell you, Herrschers are no fucking joke! These are beings who can resist having their souls taken or destroyed, control the fundamental forces and concepts of the universe and withstand the effects of the Imaginary Tree, an infinite multi-layered cosmological structure that exists beyond space and time and can erase normal beings out of existence. It's also the counterpart of the Sea of Quanta, an 11th dimensional area which contains infinite bubble universes. And Herrscher of Reason Bronya can travel across multiple dimensions in the Sea of Quanta which puts her at infinite speeds.

Shadow: The Star of Eden, which Welt Yang and Bronya possess, can generate 11D supergravity at low energies and works in every dimension too as well as destroy two higher-dimensional realms, in which higher-dimensions are capable of easily destroying lower-dimensional realms as if they were a book and are completely unaffected by everything coming from the latter. Kevin even tanked Abyss Flower, a Divine Key that utilizes the concept of death via the Death Herrscher's Core. And in Star Rail, Welt Yang's black holes are capable of killing the planet-busting Doomsday Beast and had gone-to-toe with Phantylia, an Emanator of Destruction with the power to wipe out galaxies. Though he admits he's no longer in his prime.

Popup: Herrscher of Human: Ego Elysia was capable of moving stars in the Land of Origin, resisted having her Elsyian Realm counterpart and the Elysian Realm itself literally being deleted by the Herrscher of Corruption and the ability to control or defy fate. She was succeeded by Herrscher of Origin Mei, who possessed the same powers as her

Vanessa: Wait Star Rail? As in Honkai: Star Rail?

Adam: Yep, Honkai Impact 3rd and Honkai: Star Rail are actually in the same universe thanks to the Imaginary Tree, though admittedly Herrschers and the Honkai aren't referenced in Star Rail. Welt even admitted that Aeons are in a different league than Herrschers, so it's debatable if we can just scale Kevin to them.

Shadow: But don't underestimate non-Herrschers. Theresa Apocalypse' Oath of Judah can nullify Honkai powers at the metaphysics level and Durandal levelled 1/5th of Europe at the age of 12. And let's not forget her Dea Anchora battlesuit is composed of bubble and parallel universes which she claims was light. Guess Tony isn't the only who had an armor made out of a universe.

Vanessa: And guess what? As Deliverance Kevin, he has become so powerful that he eventually surpassed even the Previous Era's Final Herrscher. He even made a multi-layered shield so tough, it took a Deus Ex Machina to break through it. Seriously, what stops this guy?!

Weaknesses

Eventually defeated by HoFi Kiana, HoO Mei and HoTr Bronya

Defeated by Kiana in a bat duel

Can be harmed by Divine Keys

Was trapped into the Sea of Quanta by Su and was unable to break out on his own

Cynical

Honkai Carnival: My Idol Debut Comedy is Wrong, As I Expected event

Noodles (ELF Academy)

Shadow: Why none other than the power of friendship of course. Despite possessing the Authority of Finality, Kevin was ultimately bested by the combined efforts of Kiana, Mei and Bronya who gave it their all. And prior to his Deliverance form, Kevin can be harmed by Divine Keys, though you need to back it up with more.

Vanessa: And yet, despite his defeat, Kevin was happy with it. Happy that someone was willing to carry the burden on his shoulders that he carried for so long. After dueling with Kiana in within the Cocoon of Finality for one last time, he reunited with MEI and the other Thirteen Flame-Chasers in the afterlife. Now with Kiana being the true Herrscher of Finality, the Honkaiverse has a bright future ahead of it, partly due to Kevin's involvement.

Adam: Though Kevin has committed great evils to achieve his endgame, the effects are for the greater good. He lived as a human and died as a human. Kevin Kaslana truly is the Hero of the Previous Era.

Kevin: It's not a matter of choice, or of life and death. Right now, the will of all the people converge into a single wish. Step forward. This is the Signet of Deliverance. The burden of a hundred beasts..... a diabolic descent. A deliverance by the blade. It is the Chimera of humanity, the end of Stigmata; the blade that transcends Finality. If you cannot overcome it, you cannot carry the dream called fire. Let's go. This time, I'm loading my own life into this chamber..... and expect you to transcend everything!