Shiyu Defense
32,386avg score
4,742 Teams · 3.2.2
Astra Yao
S
Ether
SupportStars of Lyra
EtherSupportStars of LyraReleasedJan 22, 2025
Signal Search3 appearances2 reruns
LatestVersion 2.5Phase II
View Signal Search History 
Signature W-EngineElegant VanityFaction
- Membership
- Stars of Lyra
- Birthday
- JAN 31
Observed results
Recent Endgame Performance
Avg. endgame scores from observed submissions.About these results
Deadly Assault
32,200avg score
3,871 Teams · 3.2.3
Overview
Astra Yao stays in Idyllic Cadenza to buff the team and enable frequent assisted handoffs. She leaves most field time to the carry, while her Ultimate adds healing and two Chain opportunities.
Role
Off-field buffer and assist enabler with Ultimate healing.
Playstyle
Enter Cadenza, hand off to the carry, and refresh support through prompted assists.
Why It Works
Cadenza supplies damage and CRIT DMG buffs; Energy-consuming handoffs add ATK based on her initial ATK.
Watch For
Each Energy-backed handoff costs 25 Energy. More swapping is not automatically better, and manually ending Cadenza removes the persistent support state.
Playstyle
Combat Flow
Enter Idyllic Cadenza → Quick Assist into the carry → Maintain buffed damage → Use precise handoffs → Ultimate for healing / Chains → Continue Cadenza
Key Notes
Use initial ATK, not a temporary combat ATK reading, when checking her buff cap.
At maximum core, roughly 3,430 initial ATK reaches the 1,200 ATK limit.
Take the Quick Assist promptly for the Precise Assist follow-up.
Ultimate replaces the next two Quick Assists with Chains; plan those conversions around the carry.
Build & Investment
Best W-Engines
ATK alternative · A
Bashful Demon
Supports her ATK requirement and team buff, but supplies no Energy Regen.
Accessible alternative · A
Kaboom the Cannon
Energy Regen and team ATK; maintain its short-duration stacks.
Best Drive Disc Sets
Quick Assist support · 4-piece
Astral Voice
Her repeated assists sustain Astral stacks; Energy Regen funds more Chords.
Shared-set alternative · 4-piece
Moonlight Lullaby
Use when another teammate already carries Astral Voice; ATK helps her buff cap.
2-piece Pairings
Main Stats
Disc 4
- ATK%
Disc 5
- ATK%
Disc 6
- Energy Regen
- AlternativeATK%
Prioritize buff strength and Chord sustain. Personal damage stats come afterwards.
Recommended Substats
- ATK% to buff cap
- ATK
- CRIT Rate / CRIT DMG
Mindscape Investment
M1
Adds team-wide value through stacking All-Attribute RES reduction. Opening Decibels and a brief protection effect also make the first Ultimate more useful.
M2
Raises the Core ATK buff cap to 1,600 and improves its conversion rate. A stronger support breakpoint that also makes the buff cap easier to reach.
Teams
Recommended Teammates
Most-played compositions in our calculations. These reflect popularity and what players actually use, not a power ranking.
8,613 teams6 recent contexts
Most Played With
Skills
Basic Attack
Basic Attack: "Capriccio"
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%
Basic Attack: Interlude
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.
- 1st-Hit DMG Multiplier
- 110%
- 2nd-Hit DMG Multiplier
- 110%
- 3rd-Hit DMG Multiplier
- 110% * 2
- 4th-Hit DMG Multiplier
- 110%
- 5th-Hit DMG Multiplier
- 110% * 2
- 1st-Hit Daze Multiplier
- 72.6%
- 2nd-Hit Daze Multiplier
- 72.6%
- 3rd-Hit Daze Multiplier
- 72.6% * 2
- 4th-Hit Daze Multiplier
- 72.6%
- 5th-Hit Daze Multiplier
- 72.6% * 2
Basic Attack: Chorus
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
- 110% * 4
- Daze Multiplier
- 72.6% * 4
Basic Attack: Finale
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 Astra Yao 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%
Dodge
Dodge: "Mini Waltz"
Press [Dodge] to activate: A quick dash dodge. Character is invulnerable while using this skill.
Dash Attack: "Lunar Eclipse Melody"
Press [Basic Attack] during a dodge to activate: Attack ahead, dealing Ether DMG. When triggered, dragging the joystick allows movement in the corresponding direction.
- DMG Multiplier
- 162.1%
- Daze Multiplier
- 61.3%
Dodge Counter: "Umbrella Waltz"
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%
Assist
Quick Assist: "One Luminous Sky"
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%
Evasive Assist: "Two Hearts"
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"
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%
Special / EX Special
Special Attack: "Windchimes & Oaths"
Press [Special Attack] to activate: Quickly move away, then release Tremolo, dealing Ether DMG, and enter the Idyllic Cadenza state. During activation, dragging the joystick 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 Members DMG Increase
- 20%
- Squad Members CRIT DMG Increase
- 25%
- Minimum DMG Multiplier
- 110%
- Maximum DMG Multiplier
- 110% * 4
- Minimum Daze Multiplier
- 72.6%
- Maximum Daze Multiplier
- 72.6% * 4
Idyllic Cadenza
After entering the Idyllic Cadenza state, Astra Yao increases all squad members' DMG by (0.08+Special Attack level*0.01) × 100% and CRIT DMG by (0.07+Special Attack level*0.015) × 100%. 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
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
- 48.2% * 3
- Energy Cost
- 25
Chain Attack / Ultimate
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. A Quick Assist is triggered when this skill hits an enemy. After the skill, Astra Yao enters the Idyllic Cadenza state.
- DMG Multiplier
- 1343.9%
- Daze Multiplier
- 349.5%
Ultimate: "Fantasian Sonata"
When Decibel Rating is at Maximum, press [Ultimate] to activate: Use song to channel energy into a blast, dealing massive Ether DMG, and restoring (-50+Chain / Ultimate level*250) HP to all squad members. Character is invulnerable while using this skill. A Quick Assist is triggered when this skill hits an enemy. After the skill, Astra Yao enters the Idyllic Cadenza state. After the skill, the next two Quick Assists will be replaced by Chain Attacks. Before all replacement chances are used up, a Quick Assist is triggered whenever any squad member hits an enemy with a Chain Attack or Ultimate.
- DMG Multiplier
- 3920%
- Daze Multiplier
- 358.2%
- HP Recovery
- 2950
Core Skill & Additional Ability
Core Passive: "Graceful Andante"
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 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.
Additional Ability: "Moonlit Frenzy"
When another character in your squad is an Attack, Anomaly, or Rupture 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.
Mindscape Cinema
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 reset the duration. Upon entering the battlefield, Astra Yao immediately gains 1,000 Decibels. This effect can trigger once every 180s in Investigation Zone Mode. 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 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.
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 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.
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.
Stats & progression
Level 60
Maximum promotionHP8609
ATK640
DEF600
Level 60 Maximum promotion | HP8609 | ATK640 | DEF600 |
| Level | HP | ATK | DEF |
|---|---|---|---|
| 1 | 692 | 103 | 48 |
| 10 | 2012 | 193 | 139 |
| 20 | 3426 | 290 | 238 |
| 30 | 4841 | 386 | 337 |
| 40 | 6255 | 483 | 436 |
| 50 | 7669 | 580 | 535 |
| 60 | 8609 | 640 | 600 |