This guide explains the materials, abilities, and Eidolons for Aeon Aha in Honkai Star Rail.

Background: Aeon Aha Enters Honkai Star Rail in Version 4.7

Aeon Aha, also known as Nihilux, is a 5-Star Quantum character on The Elation path arriving in Honkai Star Rail in version 4.7. In version 4.7, Aeon Aha is the boosted 5-Star character on her banner. If a player misses her now, she will eventually return to Honkai Star Rail at some point in the future when the banner schedule cycles back to her.

This guide organizes the available information around preparation: Aeon Aha's Ascension materials, Trace materials, kit details, and Eidolons. The kit information is sourced from the Honkai Star Rail Wiki and Icy Veins, so it could change over time. All percentages listed here are based on Level 1 Traces.

Development: Version 4.7 Phase One Banner and Rerun Lineup

Version 4.7 is here, and Phase One introduces Aeon Aha as a 5-Star Quantum/Elation attacker on the "A Comedy of Stars" banner.

The same Phase One banner features reruns of three other characters:

• 5-star Imaginary/Elation attacker Silver Wolf Lv.999
• 5-star Imaginary/Elation attacker Sparxie
• 5-star Physical/Elation attacker Yao Guang

For players who want Aeon Aha or future characters, redeem new codes for Stellar Jade. The source also points to a regularly updated tier list, next banner coverage, Ministry of Education quiz answers, and information on how to get more Star Rail Passes.

Latest Progress: Aeon Aha Kit Overview

Aeon Aha is a 5-Star Quantum character of The Elation path. The following details summarize her kit as currently listed.

Element, Path, and Rarity

• Element: Quantum
• Path: The Elation
• Rarity: 5-Star

Basic Attack: Starfrost, Showtime!

Starfrost, Showtime! deals 25% Quantum Elation damage to one designated enemy target.

Skill Support: This Emanator Was Certified by Aha

This Emanator Was Certified by Aha causes one designated ally character, except Aeon Aha herself, to gain the "Emanator of Elation" state. Aeon Aha then immediately launches a Follow-up attack that deals 25% Quantum Elation damage to all enemies.

The "Emanator of Elation" state lasts for the entire battle until switching to the next target. The target with the "Emanator of Elation" state has their Elation stat increased by 10%. At the start of that target's turn, Aeon Aha gains 1 point of "Wishpower."

Technique Enhancement: ABRACADABRA!

After using the Technique, ABRACADABRA! creates a Special Dimension around Aeon Aha lasting 20 seconds. Enemies within the Special Dimension are inflicted with "Misjudgment." Enemies affected by "Misjudgment" cannot detect ally targets.

After entering combat, Aha immediately gains 1 extra turn that adds a fixed 20 Punchline to the count. Only 1 dimension effect created by allies can exist at the same time.

Talent Enhancement: Work Wonders with THEM

The Ultimate can be activated once "Wishpower" reaches 8 points. Wishpower can overflow until 10 after reaching its maximum.

Aeon Aha gains 1 point of "Wishpower" after using her Basic Attack, Skill, or Elation Skill. Once allies' Punchline reaches 40 points for the first time, Aeon Aha immediately gains 1 point of "Wishpower" and increases all allies' Critical Damage by 20%, lasting for 3 turns. This can be triggered again after Aha's turn ends.

Talent Enhancement: Faces of Elation, Ex Nihilo

While possessing the "Faces of Elation" state, Aeon Aha causes allies' Path of Elation to ascend. This enhances Punchline and the "Certified Banger" state into Bliss and the "Party Trick" state.

Bliss recovers 10% of the consumed Punchline at the end of the "Aha Instant" turn.

During "Faces of Elation," Aeon Aha's Critical Rate increases by 12%, and the damage dealt by Aeon Aha ignores 30% of the enemy target's defense.

Talent Enhancement: The True Story of Aha

When Aeon Aha and teammates deal damage, they additionally deal an "Elation Debt" effect equal to 25% of that damage to the enemy target.

During the enemy target's phase transition, they maintain the "Elation Debt" value, with a maximum not exceeding 10% of the target's maximum health points.

Elation Skill Area of Effect: Yes Aha At Full Moon

Yes Aha At Full Moon ignores the Participant identifier and is always used at the end of the Aha Instant.

It deals Quantum Elation damage equal to 30% to all enemies, then deals True damage equal to 20% of total non-True damage dealt by ally targets during that Aha Instant. The True damage is equally distributed among all enemies.

Ultimate Area of Effect: Aha! Let There Be Laughter

Aha! Let There Be Laughter causes Aha's action to advance by 20%. Aeon Aha gains the "Faces of Elation" state, lasting for 3 turns. At the start of each Aeon Aha turn, the duration decreases by 1.

The Ultimate deals 120% Quantum Elation damage to all enemies, then deals 5 instances of damage. Each instance deals 36% Quantum Elation damage to one random enemy.

Bonus Traces

Bonus Trace 1: A Prank on Aeons

Skill's Follow-Up attack additionally deals 20% Elation damage of the corresponding Type to the target with the "Emanator of Elation" state and recovers 1 Skill Point.

The Elation damage additionally dealt in this instance does not count as 1 instance of attack.

Bonus Trace 2: A Carnival in Whimsy

When receiving healing or a Shield provided by a teammate, Aeon Aha gains 1 point of "Wishpower." This can be triggered up to 1 time. The trigger count resets after using Ultimate.

Bonus Trace 3: A Box of Everything

When Aeon Aha's speed reaches 125/150 or higher, Elation increases by 120%/150%. When entering combat, Aeon Aha advances THEIR own action by 30%.

Material Progression: Aeon Aha Ascension Materials

Aeon Aha's Ascension materials are used to upgrade stats like health, attack, defence, and critical hit effectiveness.

Image credit: HoYoverse.

This information is sourced from the Honkai Star Rail Wiki. It indicates that players need a large amount of Sneering Harlequin and Whimsy Wax-based materials to fully upgrade Aeon Aha's capabilities.

In total, Aeon Aha's Ascension materials in Honkai Star Rail are:

• 15 Whimsy Wax
• 15 Dreamweave Steel
• 15 Lucid Awl
• 65 Sneering Harlequin
• 308,000 Credits

This information could change following Aeon Aha's release.

Material Progression: Aeon Aha Trace Materials

Just like Ascension, getting the most out of Aeon Aha requires leveling up her attacks and passive abilities with Trace materials. These materials vary from character to character.

With thanks to the Honkai Star Rail Wiki for sourcing the information, Aeon Aha requires a large amount of Whimsy Wax and The Fluffy Collector's Edition-based materials to fully upgrade her capabilities.

To upgrade all of her abilities, the total Aeon Aha Trace materials needed are:

• 8 Tracks of Destiny
• 12 High Hopes of the Falsely Enlightened
• 18 The Fluffy Hand-Drawn Storyboards
• 41 Whimsy Wax
• 56 Dreamweave Steel
• 58 Lucid Awl
• 69 The Fluffy Serialization Memorial Issue
• 139 The Fluffy Collector's Edition
• 3 million Credits

Duplicate Progression: Aeon Aha Eidolons

By getting duplicates of Aeon Aha from pulling on her banner, players receive her Eidolon. This material allows players to unlock Eidolon levels, with each upgrade either improving an existing attack or passive ability.

Image credit: HoYoverse.

With information sourced from Icy Veins, here are all of Aeon Aha's Eidolons in Honkai Star Rail.

Eidolon 1: Who Giggled at the Primordial Hush?

When entering combat, Aeon Aha immediately gains 5 points of "Wishpower."

When Aeon Aha is present, merrymakes Elation damage dealt by all ally targets by 15%.

Eidolon 2: Between THEIR Eyes and Yours

Enhances Path of Elation Ascension effects.

Eidolon 3: A Stacked Deck of Sorrow and Joy

Increases the level of Aeon Aha's Elation Skill by one and her Ultimate by two, both with a maximum upgrade level of 15.

Also increases the level of her Basic Attack by one, with a maximum upgrade level of 10.

Eidolon 4: A Joke's Fate Boxed in Black

The multiplier of the True damage dealt by Elation Skills increases by 25% of the original multiplier.

When Aeon Aha deals Elation damage, an additional 100% of the cumulative "Certified Banger" stacks possessed by teammates will be taken into account.

Eidolon 5: Moi Onstage and Me Offstage

Increases the level of Aeon Aha's Skill and Talent by two, with a maximum upgrade level of 15.

Also increases the level of Aeon Aha's Elation Skill by one, with a maximum upgrade level of 15.

Eidolon 6: For THEY Said: You Are Elation

Enemy targets always have the "Elation Debt" effect at a value that is at least equal to 20% of the target's maximum health points.

The first time Aeon Aha uses THEIR Ultimate, Aha's action advances by 100%, and Aha gains 100 Punchline.

Current Stage: What Aeon Aha Means Now

Aeon Aha currently sits in the version 4.7 "A Comedy of Stars" banner as the boosted 5-Star Quantum/Elation attacker. Her kit centers on Wishpower, Punchline, Elation Debt, Faces of Elation, and Aha Instant interactions.

Key numbers define her progression path:

• 8 Wishpower is needed to activate Ultimate
• Wishpower can overflow until 10
• Allies' Punchline reaching 40 triggers ally Critical Damage increase by 20%
• Technique lasts 20 seconds and adds fixed 20 Punchline
• Speed thresholds of 125/150 raise Elation by 120%/150%
• Ascension requires 308,000 Credits
• All Traces require 3 million Credits
• Eidolons add effects such as 5 Wishpower, 15% ally Elation damage, 100 Punchline, and Elation Debt equal to 20% of maximum health points

Because the kit and material details come from the Honkai Star Rail Wiki and Icy Veins, they could change. At this stage, players preparing for Aeon Aha can focus on the listed Ascension and Trace materials while version 4.7 Phase One also brings reruns of Silver Wolf Lv.999, Sparxie, and Yao Guang.

Good luck leveling up Aeon Aha in Honkai Star Rail.