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Character Stats
S Rank
Level: 1
Core Bonus Included
HP
ATK
DEF
Impact
83
CRIT Rate
5%
CRIT DMG
50%
PEN Ratio
0%
Anomaly Proficiency
92
Energy Regen
%
Anomaly Mastery
93
Last updated:
Update : Update Astra Yao full build.
Astra Yao (ZZZ) is one of the Ether characters with role. Astra Yao (ZZZ) is one of the S Rank characters in Zenless Zone Zero.
Astra Yao Build (ZZZ) is included in this guide, you can jump to Astra Yao Build (ZZZ) Here.
Our Astra Yao can activate her off-field support mode through her Special Skill—this support mode is called the “Idyllic Cadenza Mode.”
The Special Skill can be cast in two ways:
However, the buffs provided by tapping and holding are identical, and the damage dealt by Astra Yao is negligible, so it’s suggested to tap. In practice, it’s recommended to place Astra Yao in the first position, so at the start of the battle, she can come out, use her Special, and remain in off-field for the entire duration.
Invincibility: When Astra Yao is off-field, she gains invincibility, making her immune to all enemy damage.
Damage and Crit Damage Buffs for Teammates: While off-field, Astra Yao provides the entire team with a 20% damage boost and a 25% critical damage boost.
“Tremolo” Mechanism:
Quick Assist and Two Hidden Mechanics
Next, Astra Yao has a fourth function while in off-field mode: she greatly simplifies the process of triggering Quick Assist for the entire team. When any character in the team attacks an enemy, another character’s Quick Assist will automatically activate. This makes it much easier to switch to another character, allowing them to benefit from the 1200 attack boost. Afterward, you can continue attacking with the current character, which will trigger the previous character’s Quick Assist again.
Moreover, she provides two hidden mechanics:
When casting the Ultimate, Astra Yao first deals a large area of Ether damage and then heals the entire team for a fixed 2950 HP. This healing amount is not affected by Astra Yao’s stats or weapon and is always fixed at 2950 HP.
The Ultimate also has one final effect: after using the Ultimate, the next two Quick Assists will be upgraded to Chain Attacks. After these two instances, they revert back to normal Quick Assists.
“Capriccio”
Astra Yao (ZZZ) Basic Attack
Press to activate:
Perform up to three attacks forward, dealing Ether DMG.
During 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.
Moveset
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Interlude
Astra Yao (ZZZ) Basic Attack
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.
Moveset
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Chorus
Astra Yao (ZZZ) Basic Attack
While in the Idyllic Cadenza state, press 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.
Moveset
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Finale
Astra Yao (ZZZ) Basic Attack
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.
Moveset
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“Mini Waltz”
Astra Yao (ZZZ) Dodge
Press 
to activate:
A quick dash dodge.
Character is invulnerable while using this skill.
Moveset
“Lunar Eclipse Melody”
Astra Yao (ZZZ) Dash Attack
Press during a dodge to activate:
Attack ahead, dealing Ether DMG.
When triggered, dragging the stick/joystick allows movement in the corresponding direction.
Moveset
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“Umbrella Waltz”
Astra Yao (ZZZ) Dodge Counter
Press during a Perfect Dodge to activate:
Attack enemies in front, dealing Ether DMG.
Character is invulnerable while using this skill.
Moveset
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“Windchimes & Oaths”
Astra Yao (ZZZ) Special Attack
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 20% and CRIT DMG by 30%.
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”.
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 controlled character’s attack hits an enemy, once per 3s.
· When the controlled 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.
Moveset
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“Tipsy Concerto”
Astra Yao (ZZZ) 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.
Moveset
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“Fantasian Sonata”
Astra Yao (ZZZ) Ultimate
When Decibel Rating is at Maximum, press to activate:
Use song to channel energy into a blast, dealing massive Ether DMG, and restoring 2950 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.
Moveset
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“Graceful Andante”
Astra Yao (ZZZ) Core Passive
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%/24%/26%/28%/30%/32%/35% 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.
“Moonlit Frenzy”
Astra Yao (ZZZ) Additional Ability
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.
“One Luminous Sky”
Astra Yao (ZZZ) Quick Assist
When the on-field character is launched, press to activate:
Attack enemies in front, dealing Ether DMG.
Character is invulnerable while using this skill.
Moveset
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“Two Hearts”
Astra Yao (ZZZ) Evasive Assist
When the character in combat is about to be attacked, press to activate.
Dodges the enemy’s attack and activates Vital View.
Character is invulnerable while using this skill.
Moveset
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“Three Lifetimes of Fate”
Astra Yao (ZZZ) Assist Follow-Up
Press after an Evasive Assist to activate:
Release an energy beam forward, dealing Ether DMG.
Character is invulnerable while using this skill.
Moveset - FUA 5th hit Baisc ATK
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The percentage indicates the performance of the Mindscapes in Damage Boost to whole team. (Miyabi + Yanagi + Astra Yao)
No Data Found
M1
Provides 1 stack of 6% All-Attribute Resistance Reduction (up to 3 stacks total), grants 10 Decibel upon entering, and after you use Ultimate, each character gains a 1-second invincibility once.
Based on overall calculations, this yields about a 17% increase.
M2
Raises the core skill’s Attack buff conversion by 19%, up to an extra 400 Attack, and whenever a teammate enters via Assistance or Chain Attack, Astra Yao will trigger an additional synergy strike.
The main benefit of M2 comes from that extra +400 Attack buff and the significantly lowered Attack threshold. You only need 2963 Attack to fully benefit, so you can remove at least one Attack main stat on your Drive Discs. Overall, this is about 9% increase.
M4
For 15 seconds after performing a Chain Attack, Astra Yao can still activate Quick Assist even with insufficient energy. Additionally, the next Quick Assist used by the incoming character gains one of the following buffs, depending on their type:
While these features seem extensive, the actual gain is limited because most current Quick Assist multipliers are relatively low, so the net increase is not very pronounced.
M6
Increases the damage multiplier of the coordinate attack to 120% of the original value and boosts Crit Rate by +80%. When a Precise Assistance is triggered, it automatically follows up with a fully charged Basic Attack 3 that also benefits from +80% Crit Rate (available once every 10 seconds).
This transforms Astra Yao into a valid “Off-field sub-DPS.” With M2 as a foundation, you can equip a Crit DMG Drive Disc in the fourth slot and just 6 Crit Rate substats will cap her Crit chance. Astra Yao’s team damage contribution thus rises from 1.64% to 10.8%—quite notable for a support role—netting about a 4.5% total increase overall.
Pulling Recommendation :
M0R0, M1R0, M2R0
Astra Yao (ZZZ) Mindscape 1
Astra Yao (ZZZ) Mindscape 2
Astra Yao (ZZZ) Mindscape 3
Astra Yao (ZZZ) Mindscape 4
Astra Yao (ZZZ) Mindscape 5
Astra Yao (ZZZ) Mindscape 6
100%
94.95%
96.11%
95.78%
92.16%
Astra Yao’s Signature W-engine, Elegant Vanity, boasts a high base attack of 713, with secondary stats providing additional attack bonuses. Its skill effect restores 5 energy to the wielder whenever any teammate enters the field using Quick Assist, Chain Attack, or Evasive Assist, and grants a 14% damage boost to the entire team whenever the wielder consumes 25 or more energy, stacking up to 2 layers.
Thanks to the high base attack and secondary stat bonuses, Astra Yao’s Drive Disc setup can efficiently utilize two attack-oriented discs and one energy-recovery disc to fully benefit from the passive effects. However, for other weapons with lower attack stats on their secondary slots, three attack discs are typically required to maximize the core passive.
Overall, Astra Yao’s Signature W-engine is not highly prioritized. Instead, her Eidolon Form is strongly recommended, as it offers superior utility by reducing enemy elemental resistance by 18% and granting the team the “Sound of Sanctuary” effect upon casting her Ultimate, providing 1 second of invincibility when attacked. This level of utility far surpasses what the signature W-engine can offer, making Eidolon Form the optimal choice.
ATK%
ATK%
ATK%/Energy Regen
Main Stats
ATK% > Others
Sub Stats
Astral Voice Effect:
When any teammate enters the field via Quick Assist, they gain one stack of Astral. Each stack increases the damage dealt by the character entering the field through Quick Assist by 8%. Considering the synergy between this skill and Drive Discs, Astra Yao, as the first limited support character, undoubtedly offers the highest overall improvement in quality among all support characters.
For Drive Disc main stats, in most situations:
For Drive Disc sub-stats, prioritize boosting ATK%, other stats are not important to Astral Yao.
Astra Yao is a superior alternative to Sousaku, offering buffs with longer duration and greater effect. Additionally, her mechanics allow for easier and faster operation, streamlining the team’s performance and reducing the complexity of execution.
Support
Stun
Burst
Bangboo
Nicole’s debuffs on enemies are limited by their short duration, which can hinder consistent damage output. Astra Yao, on the other hand, provides longer-lasting and stronger buffs, ensuring a more reliable and sustained impact on the team’s overall DPS, while also simplifying team management.
Support
Anomaly
Anomaly
Bangboo
Astra Yao’s off-field mechanics allow her to provide powerful buffs without taking up the on-field time of the two primary DPS characters. This ensures the team’s strongest damage dealers can remain active longer, maximizing their output while benefiting from Astral Yao’s support.
Support
Defense
Anomaly
Bangboo
Astra Yao’s Ultimate synergizes exceptionally well with Jane by providing a free and additional Chain Attack, allowing Jane to immediately enter her Passion state. This significantly enhances Jane’s up-time, ensuring her peak damage potential is maintained for a longer duration.
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