Astra Yao
Astra Yao is a transformative support unit that redefines team-wide buffing and enables unique Quick-Swap strategies. Her ability to remain active and invulnerable on-field while buffing others makes her a staple for any high-tier roster.
Astra Yao utilizes her unique 'Idyllic Cadenza' state to buff allies while remaining on the field as an invulnerable presence. She consumes energy to facilitate on-demand Quick Assists, effectively pushing the boundaries of traditional swap rotations. Her mechanics reward strategic energy management to maximize damage bonuses and utility for the entire squad.
Overview
Quick Build
W-Engine
Elegant Vanity
S-rank — ATK%, best in slot
Disk Set
Astral Voice
4-PC · Best in slot
Disk 4
ATK%
Main stat
Disk 5
ATK%
Main stat
Disk 6
Energy Regen = ATK%
Substats
CRIT Rate >= CRIT DMG = ATK%
Strengths
- High team-wide DMG and CRIT DMG buffs
- Unique invulnerability while off-active in Idyllic Cadenza
- Enables on-demand Quick Assists for superior rotation control
- Provides essential RES reduction at M1
- Synergizes strongly with various DPS specialties
Weaknesses
- Immobile during Idyllic Cadenza activation
- Requires significant energy management for optimal utility
- Complex rotation demands precise timing
- Strict dependency on specific playstyles to unlock full potential
- Energy-hungry kit can limit team-wide consistency without proper investment
Skill Priority
Primary damage source.
EX delivers strong damage.
Chain burst.
Passive enhancement.
Negligible.
Stat Priority
Initiate by entering the Idyllic Cadenza state to provide immediate utility before swapping to your primary DPS.
Consume Chords during high-intensity rotations to keep buff uptime at maximum potential.
Review and adjust rotations based on your specific team composition.
W-Engines
S-Rank W-Engines
ATK%
When any squad member enters the field through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, the equipper gains 5/5.5/6/6.5/7 Energy. This effect can trigger once every 5s. When the equipper consumes 25 or more Energy, the DMG dealt by all squad members increases by 10/11.5/13/14.5/16%, stacking up to 2 times, and lasting 20s. Repeated triggers refresh the duration. Only one instance of this effect can exist in the same squad.
Why it works —Provides essential Energy regeneration and scalable squad DMG buffs, perfectly complementing her activation-heavy playstyle.
A-Rank W-Engines
ATK%
Increases Ice DMG by 15/17.5/20/22/24%. When launching an EX Special Attack, all squad members' ATK increases by 2/2.3/2.6/2.9/3.2% for 12s, stacking up to 4 times. Retriggering refreshes duration. Passive effects of the same name do not stack.
Why it works —Offers ATK buffs but is less efficient for her primary support role compared to energy-focused engines.
Energy Regen
When any friendly unit in the squad attacks and hits an enemy, all friendly units' ATK increases by 2.5/2.8/3.2/3.6/4% for 8s, stacking up to 4 times. The duration of each stack is calculated separately, and each friendly unit can provide 1 stack of the buff. Passive effects of the same name do not stack.
Why it works —Provides consistent ATK stacking, though it lacks the specific energy acceleration required for her core loop.
Energy Regen
Dealing Ether DMG using an EX Special Attack, Chain Attack, or Ultimate increases all squad members' DMG against the target by 15/17.5/20/22/24% and increases the equipper's Energy Regen by 0.5/0.58/0.65/0.72/0.8 per second for 2s. Passive effects of the same name do not stack.
Why it works —Strong alternative that boosts squad DMG against targets and enhances her personal energy regeneration.
Disk Drives
Disk 4
ATK%
Disk 5
ATK%
Disk 6
Energy Regen = ATK%
Disk 4
ATK%
Disk 5
ATK%
Disk 6
Energy Regen = ATK%
Team Compositions
Astra Yao
Support
Miyabi
Anomaly
Nangong Yu
Stun
High-usage endgame shell featuring Astra Yao, Miyabi, Nangong Yu. Built around Astra Yao's Support role with teammates covering stun, buffs, or secondary damage.
Primary Support — owns the damage / utility identity of this squad.
Secondary Anomaly / Disorder partner that amplifies Astra Yao's damage windows.
Opens stun windows so Astra Yao can dump burst damage safely.
Skills & Mindscapes
Skills
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.
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.
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.
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.
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.
While in the Idyllic Cadenza state, press 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.
Press Dodge to activate. A quick dash dodge. Character is invulnerable while using this skill.
Press Basic Attack during a dodge to activate: Attack ahead, dealing Ether DMG. When triggered, dragging thestick/joystick allows movement in the corresponding direction.
Press Basic Attack during a Perfect Dodge to activate. Attack enemies in front, dealing Ether DMG. Character is invulnerable while using this skill.
Press Special Attack 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 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 while using this skill.
After entering the Idyllic Cadenza state, Astra Yao increases all squad members' DMG and CRIT DMG. 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 to Basic Attack 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, or hold Dodge to exit the Idyllic Cadenza state.
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 Assist to switch characters and trigger a Precise Assist, causing Astra Yao to follo
Mindscapes
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**.
Is it worth getting?
Essential for the added RES reduction and improved energy economy at the start of combat.
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**.
Is it worth getting?
Strong mid-early upgrade — a common first vertical stop when you like this agent.
Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. **+2**
Is it worth getting?
Skill-level bump only — fine on the path to higher Mindscapes, not a pull goal by itself.
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 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.
Is it worth getting?
Good Anomaly investment — improves buildup / Disorder payoff for this kit.
Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. **+2**
Is it worth getting?
Skill-level bump only — fine on the path to higher Mindscapes, not a pull goal by itself.
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**.
Is it worth getting?
Massive damage ceiling increase with high CRIT Rate and multiplier buffs.
Astra Yao is viable and competitive at M0. First stop: M2. Endgame target: M2.
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