Zenless Zone Zero's Astra Yao is more than just New Eridu's famous singer. As the first dedicated healer and buffer to take center stage in the game, she brings a mix of crit boosts, healing, and a musical flourish to any squad. While her manager Evelyn usually handles the backstage chaos, Astra steps into combat as an S-rank ether support who can keep a team alive and amplify its damage output. Building her well in 2026 still means leaning into attack stats, not defensive ones, which surprises some players who expect a healer to scale with HP.
Her kit behaves less like a standard support and more like a backstage conductor who swaps between fixing the lights, tuning the instruments, and singing the final chorus. That identity matters when choosing discs and teammates. Astra's passive ability requires an attack or anomaly character in the team, so she cannot simply be dropped into any random lineup. Pairing her with a damage-dealing unit turns her from a nice-to-have singer into the glue that holds the whole performance together.
Main Stats
Astra's buffs and heals scale primarily with attack, making her feel like a volume knob that gets louder the more power you feed it.
| Slot | Main Stat |
|---|---|
| Disc 4 | Attack |
| Disc 5 | Attack |
| Disc 6 | Attack or Energy Regen |
For Disc 6, energy regen can be tempting because it helps her keep her supportive rhythm going, but a pure attack option is also viable if her healing and buffs need an extra push. Think of Disc 6 as choosing between a longer concert and a louder one.
Sub-Stats
Sub-stats should follow the same principle. Look for attack percentage, flat attack, and energy regen where possible. Since Astra is a support, some players also value survivability, but stacking attack remains the most direct way to improve both her personal contribution and the team's overall damage.
Astra appears to be a good support for many teams, but the passive requirement is the key gate. If no attack or anomaly character is present, her passive stays dormant. That is like having a world-class pianist in the room but no one thought to plug in the keyboard.
Attacks and Abilities
Astra's combat flow includes regular attacks, dodges, combo attacks, and passive attacks. Her attacks are not just filler; they help maintain uptime and trigger her supportive tempo. Dodges keep her safe when enemies target the backline, while her combo attacks weave healing and buffs into the fight without making her feel like a passive bystander.
Her passive attacks are the quiet engine of the kit. When they activate through the right team composition, they can provide crit boosts and healing that feel almost automatic. Players who enjoy supports with a rhythmic, layered playstyle will likely enjoy her more than a simple button-mashing healer.
Promotion Materials
Farming for Astra Yao requires a trip through some familiar boss content. Here is where to obtain her promotion materials:
| Material | Source |
|---|---|
| Higher dimensional data - thunderous dragon | Expert Challenge: Thracian boss |
| Finale dance shoes | Notorious Hunt: Twin Marionettes weekly boss |
The weekly boss material is especially important to plan around because it only drops from the Twin Marionettes fight. Players looking to max Astra quickly should make sure to clear that weekly challenge consistently. It is the drumbeat that paces her entire progression.
Core Skill Enhancement Materials
For core skill upgrades, the route is straightforward but still time-gated. Ether chips come from the agent skills combat simulation challenges, while hamster cage passes arrive through events or the New Eridu City Fund battle pass.
| Material | Source |
|---|---|
| Ether chips | Agent skills combat simulation challenges |
| Hamster cage pass | Events or New Eridu City Fund battle pass |
Because hamster cage passes tend to be scarce, players may want to reserve them for supports they plan to use long term. Astra is a strong candidate, but it is still worth comparing her to other supports such as Seth, Qingyi, or Lighter before spending everything. The bangboo lineup is another thing to check, since those little companions can add even more support to a team.
In summary, Astra Yao turns team building into a stage production. With the right attack or anomaly partner, she supplies healing, crit boosts, and a steady stream of support without turning the match into a lifeless stat check. Stack attack, clear the Twin Marionettes weekly boss, and grab ether chips whenever possible. By the time the final curtain falls, Astra will have earned her encore.