Astra Yao

S-Rank Agent

Astra Yao

/Ether/Support

Stars of Lyra

Stier

Introduction

Astra Yao is an S-rank Ether character in Zenless Zone Zero. Astra Yao's specialty is Support. Faction: Stars of Lyra.

On our Zenless Zone Zero tier list Astra Yao is S tier, 1st of the 57 characters ranked, from where 12 current tier lists put Astra Yao.

Other Ether characters in Zenless Zone Zero: Aria, Lucia Elowen, Nangong Yu, Nicole Demara, Pyrois, Vivian Banshee and 2 more.

Is Astra Yao good?

The first limited support and one of the strongest: her buffs, including one of the biggest ATK buffs in the game, reach the whole team, which makes her especially good in double-damage teams. Her Special puts her into Idyllic Cadenza, where she stays invulnerable on the field even after swapping out and lets allies spend her Energy on Quick Assists at will, including Chain Attacks outside stuns.

She also heals. She's the simplest agent to play, but her low field time pushes you into two active agents.

Strengths

  • Fits almost any team
  • Team-wide buffs, including a huge ATK buff
  • Heals the team
  • Quick Assists on demand and Chain Attacks outside stuns

Weaknesses

  • Pushes you into a two-active-agent playstyle

Best build for Astra Yao

From 2 guides

W-Engine

5 options

Main stats

Disc 4
ATK%
Disc 5
ATK%
Disc 6
ATK%/Energy Regen
Substats
ATK% >Anomaly Proficiency >PEN >ATK=Flat ATK=CRIT Rate

Drive Disc (4-piece)

2 options
  1. 1
    Astral Voice(4)
    2 of 2
  2. 2
    Moonlight Lullaby(4)
    2 of 2

Drive Disc (2-piece)

4 options
  1. 1
    Moonlight Lullaby(2)
    1 of 1
  2. 2
    Swing Jazz(2)
    1 of 1
  3. 3
    Hormone Punk(2)
    1 of 1
  4. 4
    Astral Voice(2)
    1 of 1

Profile

Astra Yao carries the title "Leader of the Stars of Lyra". Astra Yao is a female Human. Her birthday is January 31st, and she stands 176cm (5'9) tall. Astra Yao was released on 22 January 2025.

Background

"This next song is dedicated to the world!"

Astra Yao

"It's too late! You're now officially invited to join me on my one-day escape plan.

I'm gonna ditch work, run away, and make my way to Reverb Arena!"

"You know, I actually think that being recognized is kinda cool~"

"Every era needs an iconic artist, someone who bears the people's aspirations of that era and brings them hope."

"Good evening, New Eridu! Are you ready?

I'm about to hit you with some incredible magic!"

Completely different from The Queen she is under the spotlight, Astra Yao is more like an ordinary girl in her daily life...

Though she has a curiosity that far exceeds that of a typical girl.

Astra doesn't seem to care much for things like company rules...

She prefers sneaking out to hang out with her fans.

The imposing Queen and the bubbly girl — which one is the real Astra Yao?

I can't help but feel like there's something inside her that drives her to be the way she is now...

Stories

1
Agent Profile: Astra Yao

Astra Yao is widely regarded as Ridu's most iconic singer. With her extraordinary voice, stage presence, and songwriting talent, she has led the musical trends of an entire era. "If music is the resonance of the soul, then Astra Yao is the spark that ignites it all," said one famous music critic.

As brilliant as she is, Astra remains remarkably sincere and pure. On stage, her voice resonates deeply with the audience, which has allowed her to amass a large and loyal fanbase known as her "Astranauts." Of course, Astra's brilliance wouldn't be possible without the careful protection of her manager, Evelyn. Offstage, she appears to be just a cute, hapless girl who depends on Evelyn in her daily life, and on Wise and Belle in the Hollows.

"If I tickled Eous, would it make you laugh?" Astra asked curiously while lifting the Proxy, who was linked via the HDD system.

She seems to have a particular fondness for Eous. Contemplation: Human emotions are indeed an interesting subject. It's still hard to determine whether Astra likes Eous because of the owner, or whether she likes the owner because of Eous.

Increase Trust to Close to unlock more

Astra is particularly fond of Random Play. However, her whereabouts are closely monitored. For now, it seems she can still use an excuse like, "The store offers rare versions of old movies, and I've got such good taste in movies, so of course I'd love it!" But being the biggest celebrity in Ridu, such frequent visits to a video rental store are not exactly conducive to keeping our identity under wraps. But, who cares about that! If our identity gets exposed, so be it — Astra can't not come. Contemplation: Creating various situations to bring Astra and Master together is a great way to win the Master's favor.

Stats

  • HP8,609
  • ATK640
  • DEF600

At level 60. Each bar is measured against the highest value in the Zenless Zone Zero roster.

Skills

23
  • Basic Attack: "Capriccio"

    Basic Attack

    Press Basic Attack to activate: Perform up to three attacks forward, dealing Ether DMG. During the 3rd-hit, hold Basic Attack to charge, drawing enemies in and expanding the attack range for a stronger attack. After using other skills, hold Basic Attack to initiate the 3rd-hit directly. 1st-Hit DMG Multiplier: 87.8% 2nd-Hit DMG Multiplier: 118.5% 3rd-Hit Min DMG Multiplier: 241.9% 3rd-Hit Max DMG Multiplier: 542.4% 1st-Hit Daze Multiplier: 62.2% 2nd-Hit Daze Multiplier: 85% 3rd-Hit Min Daze Multiplier: 173.1% 3rd-Hit Max Daze Multiplier: 329.4%

    At skill level 12

  • Basic Attack: Interlude

    Basic Attack

    While in the Idyllic Cadenza state, press Basic Attack to activate: Release Tremolo forward to attack, dealing Ether DMG. A Quick Assist will be triggered when this skill hits an enemy.

  • Basic Attack: Chorus

    Basic Attack

    While in the Idyllic Cadenza state, press Basic Attack during a Perfect Dodge to activate: Launch multiple Tremolo attacks at enemies in front, dealing massive Ether DMG. A Quick Assist will be triggered when this skill hits an enemy. Character is invulnerable while using this skill. DMG Multiplier: 440% Daze Multiplier: 290.4%

    At skill level 12

  • Basic Attack: Finale

    Basic Attack

    While in the Idyllic Cadenza state, hold Basic Attack to activate: Release Tremolo forward to attack, dealing Ether DMG and exit the Idyllic Cadenza state. Upon activation of the skill, it grants the buff from Core Passive: "Graceful Andante". With enough Energy, consumes Energy to follow up with 1 Tremolo and 3 Tone Clusters. This Tremolo attack released is considered an EX Special Attack. DMG Multiplier: 110% Daze Multiplier: 72.6%

    At skill level 12

  • Dodge: "Mini Waltz"

    Dodge

    Press Dodge to activate: A quick dash dodge. Character is invulnerable while using this skill.

  • Dash Attack: "Lunar Eclipse Melody"

    Dodge

    Press Basic Attack during a dodge to activate: Attack ahead, dealing Ether DMG. When triggered, dragging the the movement stick allows movement in the corresponding direction. DMG Multiplier: 162.1% Daze Multiplier: 61.3%

    At skill level 12

  • Dodge Counter: "Umbrella Waltz"

    Dodge

    Press Basic Attack during a Perfect Dodge to activate: Attack enemies in front, dealing Ether DMG. Character is invulnerable while using this skill. DMG Multiplier: 220% Daze Multiplier: 145.2%

    At skill level 12

  • Quick Assist: "One Luminous Sky"

    Assist

    When the active character is launched, press Assist to activate: Attack enemies in front, dealing Ether DMG. Character is invulnerable while using this skill. DMG Multiplier: 110% Daze Multiplier: 72.6%

    At skill level 12

  • Evasive Assist: "Two Hearts"

    Assist

    When the on-field character is about to be attacked, press Assist to activate: Dodges the enemy's attack and activates Vital View. Character is invulnerable while using this skill.

  • Assist Follow-Up: "Three Lifetimes of Fate"

    Assist

    Press Basic Attack after an Evasive Assist to activate: Release an energy beam forward, dealing Ether DMG. Character is invulnerable while using this skill. DMG Multiplier: 609.3% Daze Multiplier: 391.9%

    At skill level 12

  • Special Attack: "Windchimes & Oaths"

    Special Attack

    Press Special Attack to activate: Quickly move away, then release Tremolo, dealing Ether DMG, and enter the Idyllic Cadenza state. During activation, dragging the the movement stick enables movement in the direction held. Hold Special Attack to charge during activation, drawing enemies in, and follow up with 1 to 4 Tremolos depending on the charge duration. A Quick Assist will be triggered when this skill hits an enemy. Character is invulnerable when quickly moving away. Squad DMG Increase: 20% Squad CRIT DMG Increase: 25% Minimum DMG Multiplier: 110% Maximum DMG Multiplier: 440% Minimum Daze Multiplier: 72.6% Maximum Daze Multiplier: 290.4%

    At skill level 12

  • Idyllic Cadenza

    Special Attack

    After entering the Idyllic Cadenza state, Astra Yao increases all squad members' DMG by 9% and CRIT DMG by 8.5%. While in the Idyllic Cadenza state, Astra Yao cannot move, but pressing Basic Attack will activate Basic Attack: Interlude, and pressing Dodge will activate a dodge. After triggering a Perfect Dodge, press Basic Attack to activate Basic Attack: Chorus. While in this state, Astra Yao's Anti-Interrupt Level is increased, and the DMG she takes is reduced by 40%. After switching to another character, Astra Yao will remain on the field and become Invulnerable. When switching back to her, she will automatically follow up with Special Attack: "Windchimes & Oaths". During this state, hold Basic Attack to activate Basic Attack: Finale, exiting the Idyllic Cadenza state, or hold Dodge to exit the Idyllic Cadenza state directly.

  • Chord

    Special Attack

    For every 25 Energy, Astra Yao will have 1 Chord. While in the Idyllic Cadenza state, when Astra Yao has Chords, a Quick Assist can be triggered in the following situations: · When the active character's attack hits an enemy, once per 3s. · When the active character's heavy attack hits an enemy, once per 1s. When other squad members switch in through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, Astra Yao will consume 25 Energy and release 1 Tremolo to attack. This Tremolo attack released is considered an EX Special Attack. After triggering a Quick Assist, quickly press Assist to switch characters and trigger a Precise Assist, causing Astra Yao to follow up with 3 Tone Clusters to attack. When other squad members switch in through a Chain Attack, Defensive Assist, or Evasive Assist, it will automatically trigger a Precise Assist. Follow-Up Tremolo DMG Multiplier: 92.2% Follow-Up Tone Cluster DMG Multiplier: 144.6% Follow-Up Tremolo Daze Multiplier: 0% Follow-Up Tone Cluster Daze Multiplier: 0% Energy Cost: 25

    At skill level 12

  • Chain Attack: "Tipsy Concerto"

    Chain Attack

    When a Chain Attack is triggered, select the character to activate: Use song to channel energy into a blast, dealing massive Ether DMG. Character is invulnerable while using this skill. After the skill, Astra Yao enters the Idyllic Cadenza state. DMG Multiplier: 1,343.9% Daze Multiplier: 349.5%

    At skill level 12

  • Ultimate: "Fantasian Sonata"

    Chain Attack

    When Decibel Rating is at Maximum, press Ultimate to activate: Use song to channel energy into a blast, dealing massive Ether DMG, and restoring 200 HP to all squad members. Character is invulnerable while using this skill. After the skill, Astra Yao enters the Idyllic Cadenza state. After the skill, the next two Quick Assists will be replaced by Chain Attacks. DMG Multiplier: 3,920% Daze Multiplier: 358.2% HP Recovery: 2,950

    At skill level 12

  • Core Passive: "Graceful Andante"

    Core Skill

    During the Idyllic Cadenza state, when other squad members switch in through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, and when Astra Yao expends Energy to release Tremolo to attack, both Astra Yao and the incoming character's ATK are increased. The increase is equal to 22% of Astra Yao's initial ATK, up to a maximum of 1,200. The effect lasts for 20s and can be extended up to 30s with repeated triggers. Increased ATK by Astra's ATK Scaling %: 35%

    At skill level 7 (F)

  • Additional Ability: "Moonlit Frenzy"

    Core Skill

    When another character in your squad is an Attack or Anomaly character: When Energy is consumed to trigger a Precise Assist or Basic Attack: Finale, Astra Yao will additionally follow up with 1 Tremolo and 3 Tone Clusters.

  • 12-Tone Equal Temperament

    Mindscape 1

    When Astra Yao's attack hits an enemy, the target's All-Attribute RES is reduced by 6%, stacking up to 3 times and lasting 30s. Repeated triggers refresh the duration. Upon entering the battlefield, Astra Yao immediately gains 1,000 Decibels. When activating her Ultimate, all squad members gain 1 stack of Song of Protection for 60s. When attacked by an enemy, consume Song of Protection, granting Invulnerability for 1s.

  • Art of Greed

    Mindscape 2

    The ATK buff from Core Passive: "Graceful Andante" is further increased by 19%, with an increased maximum of 400. While in the Idyllic Cadenza state, when other squad members switch in through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, Astra Yao will additionally follow up with 1 Tremolo and 3 Tone Clusters to attack. This effect can trigger once every 3s.

  • Interwoven Staff Notation

    Mindscape 3

    Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2.

  • Hair Upon Your Nape

    Mindscape 4

    After activating a Chain Attack or Ultimate, within 15s, Astra Yao can trigger a Quick Assist even if she does not have Chords. When the attack hits an enemy, the interval for triggering a Quick Assist is reduced to 1s. While in the Idyllic Cadenza state, when other squad members enter the field via a Quick Assist, they will receive different buffs based on their specialty, and this effect can be triggered once every 3s for the entire squad: Attack: The next Quick Assist heavy attack on an enemy will deal extra DMG equal to 300% of Astra Yao's ATK; Anomaly: The next Quick Assist will have 50% increased Anomaly Buildup; Stun: The next Quick Assist will inflict 50% increased Daze.

  • Proxy and Silk String

    Mindscape 5

    Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2.

  • We Are the World

    Mindscape 6

    While in the Idyllic Cadenza state, the DMG multiplier for Tremolo and Tone Clusters released or followed up with will increase to 200% of the original, and CRIT Rate is increased by 80%. When triggering a Precise Assist, Astra Yao will automatically follow up with the charged 3rd-hit of Basic Attack: "Capriccio", with a 80% increased CRIT Rate. This effect can trigger once every 10s.

Art

Astra Yao key art

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