Astra Yao portrait
SS
ZZZSS Tier 必須ガチャv2.8

Astra Yao

属性Ether
役割Support
入手方法期間限定バナー
TierSS
ElementEther
RoleSupport
Verdict 必須ガチャ
Stat Priority
ATK% (to 3,430 ATK threshold)Energy Regen RateCRIT DMGHP%

Who is Astra Yao?

Astra Yao is a singer affiliated with Stars of Lyra and the first Limited Support agent in ZZZ. She wields a microphone and uses the power of her voice to buff all squad members. Prydwen calls her "the overall best choice in almost all cases" and "the safest support pull in the game" — she provides Quick Assists, extra Chain Attacks, healing, ATK buffs, DMG% amplification, and CRIT DMG buffs all in one kit, with near-zero field time required.

スキル概要

Ultimate (Idyllic Cadenza)

Activates a team state that increases all members' DMG and CRIT DMG.

Tremolo mechanic

When Astra expends Energy via Tremolo and squad members swap in via Quick Assist, Chain Attack, or Defensive Assist, both Astra and the incoming character's ATK increase by 22% of Astra's initial ATK (max 1,200 ATK).

Quick Assists

Enables additional character swaps outside of stun windows — unique routing mechanic.

Chain Attacks outside stun

Allows Chain Attacks without needing to stun enemies first.

Healing

Passive team recovery with minimal field time.

Stat threshold

Requires ~3,430 ATK to maximize team-wide ATK buff.

ビルドガイド

🔮 最適遺物/エコーセット

4-PC Astral Voice + 2-PC Swing Jazz. Hit 3,430 ATK threshold first, then stack Energy Regen. The 4-PC grants ATK% and squad Astral buff on Quick Assist entry.

最適光円錐/武器

Signature not required — Prydwen explicitly states this. F2P: Kaboom the Cannon (A-Rank) — provides up to 16% ATK buff to the whole team + Energy Regen. Described as strongly recommended for budget players.

📊 サブステータス優先度

ATK% (to 3,430 ATK threshold)Energy Regen RateCRIT DMGHP%

👥 最適パーティ

Universal — fits every team in ZZZ. Especially powerful in double DPS compositions where both carries benefit from her ATK, DMG%, and CRIT DMG buffs simultaneously.

She upgrades any comp and does not require faction or element matching.

無課金向け判断

必須ガチャPatch 2.8

Prydwen: "Astra Yao is the safest support pull in the game." Fits every team, heals, enables unconventional combo routing via Quick Assists. Does NOT need her signature W-Engine.

Astra Yao does not need her signature W-Engine. Kaboom the Cannon (A-Rank, available in standard pulls) fully covers her Energy Regen needs and adds a 16% team ATK buff.

She is the single highest-priority limited support pull in ZZZ for any account type. If you can invest in one support for the long term, this is the pick.

よくある質問

Does Astra Yao need her signature W-Engine?

No — Prydwen explicitly states she does not need it. Kaboom the Cannon (A-Rank) provides Energy Regen and 16% team ATK, fully covering her rotational needs at a fraction of the cost.

What is the 3,430 ATK threshold?

Astra Yao's Core Skill gives her teammates an ATK bonus equal to 22% of her own ATK. The buff caps when she hits ~3,430 ATK, so building beyond that is diminishing returns. Prioritize hitting this threshold before stacking other stats.

Does she fit every team?

Yes. Her buffs — ATK, DMG%, CRIT DMG, Quick Assists, and healing — are attribute-neutral and role-neutral. She upgrades Stun, Anomaly, Attacker, and hybrid teams equally without any faction or element requirement.

What makes her Quick Assist unique?

Quick Assists allow extra character swaps outside of standard stun windows. This unlocks combo routing options that are normally gated behind stunning enemies first, giving your team additional damage windows and Chain Attack opportunities.