Welcome to LootBar's ultimate Zenless Zone Zero guide! Today, we're diving into Astra Yao, the upcoming S-rank Ether support agent. With a unique playstyle and a variety of powerful builds, Astra Yao is a force to be reckoned with. Let’s break down everything you need to know to maximize Yixuan's potential.
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Astra Yao Agent Overview
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Astra Yao Information
| Agent Information | ||
 |
Rarity | S-Rank |
| Attribute | Ether | |
| Specialty | Support | |
| Faction | Stars of Lyra | |
| Combat Role | Support and Sustain | |
| How to Get | Acquire from Astra Yao Exclusive Channel Banner: “Thousand Melodies” (Limited Banner) | |
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Astra Yao Gameplay and Playstyle
Astra Yao is an Ether and Support character. In combat, she uses her musical talents to inspire and aid the whole team. When she enters her Idyllic Cadenza state, she starts a mini-concert, boosting the squad's damage and providing buffs. In this state, switching to other Agents keeps her singing from the backlines, where she becomes invulnerable. Astra's Ultimate heals the team and attacks enemies, with the next two character switches triggering Chain Attacks for extra damage. To end her performance, hold the Basic Attack, which also heals the squad.
For more detailed information about Astra Yao, please check: Astra Yao Kit.
Best Skills and Skill Priorities for Astra Yao
Below are the best skill priorities for Astra Yao:
| Skill | Priority |
 Core Skill |
★★★★ (Top) |
 Chain Attack |
★★★ (High) |
 Special Attack |
★★★ (High) |
 Basic Attack |
★★ (Medium) |
 Assist |
★★ (Medium) |
 Dodge |
★ (Low) |
Best W-Engines for Astra Yao
Below are the best W-Engines for Astra Yao:
1. Elegant Vanity
| W-Engine | Base Stats |
 Elegant Vanity (S-Rank) |
+713 Base ATK (Level 60) +30% ATK% (Level 60) |
| W-Engine Effect (R1) | Lush Grapine: When any squad member enters the field through a Quick Assist, Chain Attack, Defensive Assist, or Evasive Assist, the equipper gains 5 Energy. This effect can trigger once every 5s. When the equipper consumes 25 or more Energy, the damage dealt by all squad members increases by 10%, stacking up to 2 times, and lasting 15s. Repeated triggers refresh the duration. Only one instance of this effect can exist in the same squad. |
Elegant Vanity is Astra Yao’s signature W-Engine and her best-in-slot option. The Attack boosts help in increasing her and her team’s damage output as well as boost her healing effectiveness in battle. Apart from the multitude of attack boosts, this W-Engine also provides her Energy Regen whenever she deals Chain Attacks or switches to another teammate through her Assist skills and moves. Since Astra Yao’s playstyle involves channeling her energy into her song attacks, she can further increase the damage output of her teammates.
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2. Weeping Cradle
| W-Engine | Base Stats |
 Weeping Cradle (S-Rank) |
+684 Base ATK (Level 60) +24% PEN Ratio (Level 60) |
| W-Engine Effect (R1) | Punishment: While off-field, the equipper's Energy Regen increases by 0.6/s. Attacks from the equipper enhance the squad's DMG against a struck target by 10% for 3 seconds. During this period, this effect is further increased by 1.7% every 0.5s, up to a maximum additional increase of 10.2%. Repeated triggers only refresh its duration without refreshing the DMG increase effect. Passive effects of the same name do not stack. |
Rina’s signature W-Engine, Weeping Cradle, is an alternate S-Rank weapon option for Astra Yao. The high Base Attack value provides more damage output to her and teammates Quick Assist and Chain Attack when Idyllic Cadenza state is active on the field. This W-Engine also gives additional energy regeneration for Astral while she is inactive in battle. Furthermore, this S-Rank weapon provides additional damage boost to all her teammates whenever Astral struck her enemies. Unfortunately, her kit will not be able to maximize the PEN Ratio buff unlike Rina.
3. Kaboom the Cannon
| W-Engine | Base Stats |
 Kaboom the Cannon (A-Rank) |
+624 Base ATK (Level 60) +50% Energy Regen (Level 60) |
| W-Engine Effect (R5) | Stampede Accident: When any friendly unit in the squad attacks and hits an enemy, all friendly units' ATK increases by 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. |
Kaboom the Cannon is the recommended A-Rank W-Engine option for Astra Yao. This weapon provides stackable attack buff up to 16% to her team whenever an active unit deals damage to an enemy. This buff last longer compared to other A-Rank W-Engines. Lastly, it gives Astra Yao additional Energy Regen.
4. The Vault
| W-Engine | Base Stats |
 The Vault (A-Rank) |
+624 Base ATK (Level 60) +50% Energy Regen (Level 60) |
| W-Engine Effect (R5) | Money-Lover: Dealing Ether DMG using an EX Special Attack, Chain Attack, or Ultimate increases all squad members' DMG against the target by 24% and increases the equipper's Energy Regen by 0.8/s for 2s. Passive effects of the same name do not stack. |
Aside from Energy Regen, this W-Engine also boost Astra Yao’s Ether damage. Additionally, The Vault capitalizes on Astra Yao’s playstyle since it involves her using Chain Attacks and Special Attacks frequently, which results in an additional damage boost for her and her allies during combat. Take note that the buff only lasts in short duration.
5. Slice of Time
| W-Engine | Base Stats |
 Slice of Time (A-Rank) |
+594 Base ATK (Level 60) +20% PEN Ratio (Level 60) |
| W-Engine Effect (R5) | Say Cheese: Any squad members' Dodge Counter, EX Special Attack, Assist Attack, or Chain Attack respectively generates 32/40/48/55 more Decibels and generates 1.1 Energy for the equipper. This effect can trigger once every 12s. The cooldown for each type of attack is independent of others. Passive effects of the same name do not stack. |
Slice of Time, an A-Rank W-Engine, helps Astral gain more Decibels to unleash her Ultimate quicker, which also benefits her teammates in terms of her buffs. Aside from the Attack boost, wearing this weapon will also help generate energy faster through her normal and enhanced Special Attacks resulting into more Chord stacks. Similar to Weeping Cradle, Astral will not be able to maximize the W-Engine’s innate PEN ratio boost.
Astra Yao Best Drive Disc Sets
Here are the best Drive Disc Sets for Astra Yao:
1. Astral Voice x4 and Swing Jazz x2 Support Set (New End Game Set)
| Drive Disc | Set Effect |
 Astral Voice |
|
 Swing Jazz (Option 1) |
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 Freedom Blues (Option 2) |
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Astral Voice is Astra Yao’s Best-in-Slot (BiS) support set. This set gives Astra stackable damage buffs whenever she or her allies enter the field through Quick Assists. Furthermore, the Swing Jazz set has less damage buff compared to this new set. You can equip a pair of Swing Jazz Disk Drives for additional Energy recovery in most teams or utilize a two-piece Freedom Blues when Astral is grouped with Disorder teams.
2. Swing Jazz x4 and Hormone Punk x2 Support Set (DPS and Disorder Set)
| Drive Disk | Set Effect |
Swing Jazz |
|
 Hormone Punk (Option 1) |
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Freedom Blues (Option 2) |
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The second-best option for Astra Yao is Swing Jazz if your Astral Voice is not yet fully built. A four-piece Swing Jazz set gives Astra Yao’s teammates additional damage output in their Chain Attacks and Ultimate. Swing Jazz also synergizes with Astral as well since her main priority skill is her Chain Attacks and Ultimate as well. You can also pick Hormone Punk as an alternate two-piece option for general use. Equip a pair of Freedom Blues if Astra Yao is assigned to Anomaly-centric teams.
Astra Yao Best Drive Disc Stats
Here are the best Drive Disk main stats, sub-stats and end game stats for Astra Yao:
1. Drive Disc Main Stats
| Main Stats | Drive Disc Slot |
| ATK% | Slot 4 |
| ATK% | Slot 5 |
| Energy Regen or ATK% | Slot 6 |
2. Drive Disc Sub Stats
| Sub Stats | Priority |
| ATK% | ★★★ (High) |
| Flat ATK | ★★★ (High) |
| CRIT Rate | ★★ (Mid) |
| CRIT Damage | ★ (Low) |
Astra Yao Best Teams
1. Evelyn Hypercarry Teams
| Main DPS | Support 1 | Support 2 | |
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 Lighter (S-Rank) |
Both Evelyn and Astra Yao work together effectively due to their complementary skills and mechanics. Evelyn serves as your primary damage dealer while Astra Yao gives essential healing and buffs. As for Caesar, the defense specialist provides another layer of protection for the team through her shields while also applying a debuff to enemies. You can also choose Lighter as your support as he excels in stunning enemies and can provide deccent buffs for Evelyn.
2. Zhu Yuan Hypercarry Teams
| Main DPS | Support | Stun |
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Zhu Yuan and Qingyi work effectively with Astra Yao in terms of providing buffs and healing support. Zhu Yuan provides burst damage while Qingyi provides utility in terms of her stun crowd control.
3. Yanagi Hypercarry Teams
| Main DPS | Support | Stun |
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Yanagi acts as a Main DPS in this composition while being supported by Rina because both share the same Electric damage attribute. Also, Rina gives Yanagi Shock-related buffs as well as an additional PEN Ratio that synergizes with her "Kagen" stance passive. As for Astra Yao, she provides additional buffs in terms of damage and survivability through her healing.
4. Miyabi and Yanagi Teams
| Main DPS | Support | Sub DPS |
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|
|
 Yanagi (S-Rank) |
Miyabi and Yanagi form one of the top Disorders teams in Zenless Zone Zero. Miyabi deals burst damage while Yanagi maintains pressure on enemies. With Astra Yao, they gain additional buffs and healing, maximizing their overall performance.
5. Jane and Burnice Teams
| Main DPS | Support | Sub DPS |
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Another premium Disorder team where Jane deals significant Physical damage while Burnice inflicts Burn elemental effects. With Astra Yao providing buffs and healing, Jane and Burnice may focus on causing Disorder statuses on enemies while delivering high damage output.
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By checking out our updated Zenless Zero Astra Yao Build Guide, you'll gain the latest insights into her skills and playstyles. Don't miss out on our platform’s exclusive discounts; recharge your Monochromes on LootBar.gg today!
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