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Astra Yao Guide and Best Builds for Zenless Zone Zero (ZZZ)

Last updated Today at 13:13 by Jaymo
T0 Rating
Ether Ether
Support
Stars Of Lyra
Unknown EN Voice Actor
Endō Aya JP Voice Actor
1.

Introduction - Astra Yao

Astra Yao is an Ether Support Agent in Zenless Zone Zero. She is part of the brand new Stars Of Lyra Faction alongside Evelyn Chevalier.

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!

Astra Yao Character Demo

1.1.

How to Pull Astra Yao

Astra Yao is a limited-time S-Rank Agent, and will be available on the Exclusive Channel in Phase 1 of Version 1.5.

2.

Astra Yao Strengths and Weaknesses

V Strengths
  • +First S-Rank Support Agent.
  • +Only other Ether Agent outside of Zhu Yuan and Nicole.
  • +Has the ability to heal and buff your entire Squad.
  • +Works with various team compositions due to the wide range of buffs she provides.
X Weaknesses
  • -Her heal is a flat value meaning it will not scale with investment.
  • -Can be boring to play as she is a very off-field agent.
3.

Skills, Mindscape, and Promotions

4.

Skills, Mindscapes, and Promotions

Skills Mindscapes Promotions

Basic Dodge Assist Special Chain Core
Skill Description
Basic Attack: Capriccio

Press to activate:

Perform up to three attacks forward, dealing Ether DMG.

WDuring the 3rd-hit, hold to charge, drawing enemies in and expanding the attack range for a stronger attack.

After using other skills, hold to initiate the 3rd-hit directly.
Basic Attack: Interlude

While in the Idyllic Cadenza state, press 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

While in the Idyllic Cadenza state, press 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.
Basic Attack: Finale

While in the Idyllic Cadenza state, hold 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.
Skill Description
Dodge: Mini Waltz

Press to activate:

A quick dash dodge. Character is invulnerable while using this skill.
Dash Attack: Lunar Eclipse Melody

Press during a Dodge to activate: Attack ahead, dealing Ether DMG. When triggered, dragging the joystick allows movement in the corresponding direction.

Dodge Counter: Umbrella Waltz

Press during a Perfect Dodge to activate:

Attack enemies in front, dealing Ether DMG. Character is invulnerable while using this skill.
Skill Description
Quick Assist: One Luminous Sky

When the active character is launched, press to activate:

Attack enemies in front, dealing Ether DMG. Character is invulnerable while using this skill.
Evasive Assist: Two Hearts

When the on field character is about to be attacked, press 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

Press after an Evasive Assist to activate:

Release an energy beam forward, dealing Ether DMG.

Character is invulnerable while using this skill.
Skill Description
Special Attack: Windchimes & Oaths

Press to activate:

Quickly move, then release Tremolo, dealing Ether DMG, and enter the Idyllic Cadenza state. During activation, dragging the stick/joystick enables movement in the direction held.

Hold 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 while using this skill.
Idyllic Cadenza

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 will activate Basic Attack: Interlude, and pressing will activate a dodge.

After triggering a Perfect Dodge, press 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 to activate Basic Attack: Finale, or hold to exit the Idyllic Cadenza state.
Chord

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 characters in the squad 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 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.
Skill Description
Chain Attack: Tipsy Concerto

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.
Ultimate: Fantasian Sonata

When Decibel Rating is at Maximum, press 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.
Skill Description
Core Passive: Graceful Andante

During the Idyllic Cadenza state, when other characters 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.
Additional Ability: Moonlit Frenzy

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.
4.1.

Astra Yao's Best Mindscapes

If your option is either Astra's M1 or her Signature weapon, go for the weapon. If you have the resources for more, her M2 is definitely worth it, and her M6 will give a significant boost to Astra and her Squad.

# Mindscape Description
M1 12-Tone Equal Temperament 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.
M2 Art of Greed 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 characters 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.
M3 Interwoven Staff Notation Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2.
M4 "Hair Upon Your Nape"

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 characters enter the field via a Quick Assist, they will receive different buffs based on their speciality, 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
M5 Proxy and Silk String Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2.
M6 We Are the World 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.
4.2.

Astra's Promotions

Skill Description
Core Skill Enhancement A
  • Base Energy Regen increases by 0.12/s
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 24% of Astra Yao's initial ATK
Core Skill Enhancement B
  • Base ATK increases by 25
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 26% of Astra Yao's initial ATK
Core Skill Enhancement C
  • Base Energy Regen increases by 0.12/s
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 28% of Astra Yao's initial ATK
Core Skill Enhancement D
  • Base ATK increases by 25
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 30% of Astra Yao's initial ATK
Core Skill Enhancement E
  • Base Energy Regen increases by 0.12/s
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 32% of Astra Yao's initial ATK
Core Skill Enhancement F
  • Base ATK increases by 25
  • Core Passive: "Graceful Andante" Skill Lv.+1
  • Astra Yao and the incoming character's ATK are increased. The increase is equal to 35% of Astra Yao's initial ATK
5.

How to Play Astra Yao

Astra Yao is the first S-Rank Support agent that has the ability to heal you, making her an important squad member for the future, especially since a lot of endgame content is added to the game that requires you to have more survivability and damage, and Astra can do both.

Up until now, the only way to heal yourself during a fight was to use a Bangboo. Astra completely changes this, as her Ultimate ability will allow you to heal your entire squad. It is worth knowing that Astra's heal is capped at 2700 HP, making it a great addition, but you will not be able to fully heal yourself with her. However, Astra can also provide buffs.

She has a singing state: The Idyllic Cadenza. When Astra enters her singing state, she provides a DMG and CRIT DMG buff to all squad members.

DO NOT Hold when Astra is in the Idyllic Cadenza state, as this will exit the mode, and you would loose the damage buffs!

It is worth knowing that Astra can not move during the Idyllic Cadenza state, but you can dodge, use your Special Attack, or switch agents.

When Astra is in her Idyllic Cadenza state, she also takes less damage, and if you switch to another squad member, she will remain on the field but become invulnerable.

When you switch to another Agent during Astra's Idyllic Cadenza state through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, Astra will release Tremolo, deal damage, and increase both hers and the incoming agent's ATK. The buff is equal to a certain percentage of Astra's initial ATK, requiring you to focus on ATK % when building her.

Another speciality about Astra is the lack of EX Special Attack. She does not really have the usual EX Special Attack, and instead has a specific Chord mechanic. Every 25 energy gained gives Astra 1 Chord, and each chord during her Idyllic Cadenza state can trigger a Quick Assist. Again, if you switch to another Agent through that assist, Astra will deal damage.

To make it simple:

  1. Use Astra's Special attack, Chain attack or Ultimate to enter her Idyllic Cadenza State and buff the squad.
  2. Switch to other teammates.
  3. Trigger any assists to get Astra's Attack buff and her off-field attacks.
6.

Astra Yao Build

BiS W-Engine Elegant Vanity
Alternative W-Engines
  1. Bashful Demon
  2. Weeping Cradle
  3. The Vault
  4. Kaboom the Cannon
Best Drive Discs

4 Piece:

  1. Astral Voice

2 Piece:

  1. Swing Jazz
  2. Hormone Punk
Main Stats
  • Disc 4: ATK %
  • Disc 5: ATK %
  • Disc 6: Energy Regen / ATK %
Substat Priority
  1. ATK %
  2. Flat ATK
  3. Anomaly Proficiency / CRIT Rate / PEN
Skill Priority
  1. Core Skill
  2. EX Special Attack
  3. Ultimate
  4. Basic Attack
  5. Assist
  6. Dodge

Astra's best W-Engine is her Elegant Vanity signature S-Rank W-Engine. It is the Best-in-Slot option for Astra as it will give her ATK % and ATK alongside further boosting her assist mechanics. Astra's attack buffs for herself and the other squad members making it a great build option. If you have Bashful Demon at R5, it may actually be as efficient as Astra's signature weapon in her build. It can surprisingly give you a very good overall ATK buff.

Weeping Cradle is another good option for Astra's build as it has a high base ATK, providing more damage for her and the team, while also giving more energy regeneration while Astra is off-field.

Build Astra's with the Astral Voice Drive Discs. This set will give Astra extra damage buffs to anyone enters the field with a Quick Assist. You can pair the 4-piece Astral Voice with either 2 piece Swing Jazz for increased energy regeneration, or Hormone Punk to build more ATK.

You do need to build around 3400+ ATK on Astra for her Core Passive.

6.1.

Bangboo Information

The best Bangboo option for Astra Yao will be KnightbooKnightboo, as he increase the Agent's ATK when there is a support character in the squad, and the agents come into contact with Knight Stars.

However, you may need to adjust the Bangboo depending on your other sqaud members!

7.

Team Comps and Synergy

Astra Yao is currently the best Support agent you can have. She can be paired in almost any team which provides her with many viable team compositions.

DPS Stun Support Bangboo
Hoshimi Miyabi Tsukishiro Yanagi Astra Yao
Ellen Joe Lighter Astra Yao Knightboo

Hoshimi Miyabi and Tsukishiro Yanagi are one of the best duos, adding Astra Yao to the team means they will gain additional buffs, and survivability! You can replace Yanagi with Lighter for his Ice DMG buff if you do not have Yanagi, Soukaku, or Von Lycaon. Astra also works well with Ellen Joe instead of Miyabi.

DPS Stun Support Bangboo
Jane Doe Burnice White Astra Yao Knightboo

Jane Doe's Passion state can be triggered more often thanks to Astra's ability to allow you to use chain attack and assists. Burnice White is one of Jane's best teammate as she allows her to trigger Disorder often. You can replace Burnice with Caesar King or Seth Lowell. You can replace Jane Doe with Piper Wheel if you do not have Jane, and Burnice with Lucy for a more F2P Squad.

DPS Stun Support Bangboo
Asaba Harumasa Qingyi Astra Yao

Astra can provide a very good buff to Asaba Harumasa who often lacks a bit of damage compared to other DPS, while Qingyi will provide the Stun window to Harumasa.

DPS Stun Support Bangboo
Evelyn Chevalier Lighter Astra Yao Knightboo

While this team requires you to wait and also pull for Evelyn right after Astra, it is already known they will both make a great team. They seem to have rather complementary mechanics on top of being from the same Faction. Lighter excels both in stunning and providing Evelyn with a Fire Buff. You can also replace Lighter with Caesar King.

7.1.

Changelog

  • 22 Jan. 2025: Build updated.
  • 20 Jan. 2025: Astra's build completed.
  • 13 Jan. 2025: Astra's abilities added.
  • 16 Dec. 2024: Guide added.
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