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Phase | Window | 5-star pair | Banner name | Rate-up 4-stars |
|---|
Phase 1 | 25 Aug to 12 Sep 2026 (Americas: 25 Aug; other servers: 26 Aug start) | Robin Summeretto + Hyacine | Summer Chorus | Dan Heng, Qingque, Gallagher |
Phase 2 | 12 Sep to 27 Sep 2026 | Aventurine Waveflair + Ashveil | Over the Gilded Tides | Sampo, Hook, Guinaifen |
Version title: To Roll the Stars in Astropolis. Confirm live clocks in Warp after 4.5 maintenance.
Robin Summeretto: default new pull
Robin Summeretto is Wind Remembrance. Original Robin stays Physical Harmony. You keep both if both jobs still hold a side.
She scales with Max HP. Skill puts Summer Songbirds on stage: Bessie first, then Drummie at 6 Vibes and Paddie at 12. Ally attacks farm Vibes. When all three birds take the stage she clears Crowd Control on herself and the birds, enters Fever, and drops a Zone so allies ignore a chunk of enemy DEF.
Inside Fever the Songbirds sit on the action bar with a countdown. They fire a Memosprite Skill on their turn. Enemies take more damage based on how many birds are present. Each Songbird turn cuts 50% of current Vibes, with a 12-point floor. At 0 Vibes the birds leave and Fever ends.
Ultimate advances one ally 100% and refunds 20% of that ally’s Max Energy. That ally becomes Special Guest. Their attacks, and their summon attacks, give Robin 2 Vibes each. Healing or shields on Robin or the birds stack Groove. The first Vibe gain on a turn spends one Groove for Energy.
When an ally feeds her Vibes, the buff splits:
Technique starts the next fight with Action Advance, 6 Vibes, and a short team DMG boost.
HoYoverse showed her next to Himeko, Welt, and Huohuo with zero Remembrance units. Action Advance, Energy, DEF ignore, and extra enemy damage work on ATK and follow-up teams that never field a memosprite.
Limits you should budget for:
Advance sits on the Ultimate, so the first dump is slower than Sunday.
Energy gift is 20% of Max Energy. A typical carry gets a quarter bar.
She fills the missing buffer seat in Castorice / Evernight cores. Hyacine still holds the sustain seat.
Pull her if you own three Remembrance pieces and need the fourth, or if you want one flex buffer for follow-up and ATK hypercarries. For a Phase 1 vs Phase 2 wallet split, use the Robin Summeretto vs Aventurine Waveflair pull guide.

Hyacine: default rerun if you fail endgame
Hyacine is a T0 Wind Remembrance sustain. Skill, Ultimate, and Little Ica’s follow-up dump enough HP that most floors leave the party standing.
Three-team endgame (Memory of Chaos, Pure Fiction, Apocalyptic Shadow, Anomaly Arbitration) now needs a second premium healer. She slots into Remembrance first. Castorice and Evernight lose a large share of their ceiling without her. Off that path she covers Huohuo, Gallagher, or Dan Heng • Permansor Terrae on a second or third side.
Her kit also feeds Robin’s Groove loop: heals and shields on Summeretto or the Songbirds mint Groove, then Groove turns into Energy. After Rain raises team HP. Little Ica adds frequent attacks on top of the heals.
Stack SPD and HP. Target about 200 SPD. Signature Long May Rainbows Adorn the Sky helps those breakpoints. A strong HP / SPD cone from the Herta shop or an older Remembrance pickup still works if jade is tight.
Pull this rerun if any line is true:
You have Castorice or Evernight and no Hyacine.
You fail current endgame because the third team has no real sustain.
You want one healer who works on Remembrance and on everything else.
Hold if she is already built and your other two sides already clear.

Aventurine Waveflair: Elation DPS with a teammate tax
Waveflair is Quantum Elation. Original Aventurine stays Imaginary Preservation. You still need a real sustain.
Skill hits all enemies for Quantum DMG and banks Punchline plus Fervor. Ultimate does the same and raises his SPD for several turns. Allies attacking enemies feed him Fervor. At 10 Fervor he auto-casts Cheers! To Summer's Blaze, which counts as 20 Punchlines. The next Elation Skill inside Aha Instant upgrades to All In! To Summer's Blaze: Quantum AoE, then 10 random hits. All In spends every Fervor point; each point adds another Quantum Elation hit.
If he is the only Elation unit on the field, that Elation Skill counts as a follow-up attack. He also raises team Elation and Crit DMG. He wants partners who attack often: Ashveil, Mortenax Blade, Ratio-style FUA lines, or any high-hit shell.
Pull him if you already invest in Elation, you skipped a Quantum Elation carry, or Blade / Ashveil already live on the account. Skip him if you wanted the old gambler’s shields, or if the roster has no high-action partners.
Kit numbers can still move before 25 August. Recheck the Robin Summeretto and Aventurine Waveflair kit guide after the live patch.

Ashveil: Hunt battery, expensive roster
Ashveil is Lightning Hunt. He works as a main DPS and as a sub-DPS who feeds Fervor into Waveflair. HoYoverse parks him in the same party as Waveflair.
He sits T0 or T0.5 in most Memory of Chaos style modes. Pure Fiction and Apocalyptic Shadow drop him toward T1 when you park him as a support DPS next to Acheron or Feixiao. Mortenax Blade is the clean partner. Sparkle, Tribbie, Sunday, and Summeretto all give him a seat.
Ashveil wants other limited 5-stars and greedy relics: high CRIT Rate, CRIT DMG, and ATK. Signature The Finale of a Lie adds CRIT Rate and a follow-up buff. If Mortenax Blade is already on the account, E1 and E2 on Blade are the vertical play before you chase every Phase 2 copy.
Pull Ashveil if Mortenax Blade is already on the account, or if Phase 2 is a Waveflair + Ashveil dual-DPS plan. Skip him if you only have 4-star Hunt supports.

How to spend 4.5 pity
Step 1: Write down pity, 50/50 status, and jade. 160 Stellar Jade = 1 pull. Oneiric Shards convert 1:1. Worst-case guarantee is about 160 pulls.
Step 2: Lock one stop. F2P default: Hyacine if she is missing, else Robin Summeretto E0. Waveflair only if the Elation or Blade / Ashveil shell already exists.
Step 3: Treat Phase 1 as the decision window. You can take Hyacine or Robin first, then look at leftover pity before 12 September.
Step 4: On Light Cones, Hyacine’s Long May Rainbows Adorn the Sky is the SPD tool. Summeretto’s Rise and Sing and Waveflair’s Summer Rides the Surf wait for live text if jade is tight. Ashveil’s The Finale of a Lie is strong; check the new Hunt 4-star before you buy it. Phase 1 also rate-ups A Little Getaway, a new Elation 4-star. One or two 10-pulls on that banner is enough if the card is good.
Step 5: Rate-up 4-stars. Gallagher is the Phase 1 prize. Qingque is a Quantum filler. Dan Heng is skip-tier. Phase 2 gives Sampo and Guinaifen for DoT. Hook is skip-tier.
Cross-check free jade on active Honkai Star Rail codes before you buy shards. If the shop choice is Pass vs packs, use What to Buy First.
How to get more Stellar Jade for 4.5
Clear Anomaly Arbitration, Pure Fiction, Memory of Chaos, and Nameless Honor before Phase 1 ends.
Redeem standing codes and any leftover Special Program codes the hour they appear. Livestream sets die in about a day. Official redeem page: hsr.hoyoverse.com/gift.
Buy Express Supply Pass first if you log in daily. Fill a guarantee with Oneiric Shard packs timed to first-purchase doubles. Math sits in the How to Buy Oneiric Shards guide.
Finish free Trailblazer paths and shop Harmony units from the Honkai Star Rail best characters to build list before you spend limited jade on a fourth DPS.
Need jade for a Hyacine guarantee or a Robin E0? Top up Honkai: Star Rail on BitTopup with UID and server only. No password.

Should you skip 4.5 for Pearl?
HoYoverse drip-marketed Pearl as a 5-star Ice Elation unit for Version 4.6. Early kit talk frames her as an Elation-side sustain, with Waveflair as a likely partner.
Hold both 4.5 guarantees only if your real target is that Elation healer and neither summer kit fills a hole today. Pull Waveflair first if Ashveil or Mortenax Blade already sit on the roster and you want the Quantum carry now. Pull Robin or Hyacine first if Remembrance or three-team endgame is the current problem. Spend on units you own. Pearl still lacks a live kit.
FAQ
Who should I pull first in Honkai Star Rail 4.5?
Pull Hyacine in Phase 1 if she is missing and you run Remembrance or you fail three-team endgame. Pull Robin Summeretto if Hyacine is already built and you want a flex buffer. Hold Waveflair and Ashveil for Phase 2 only when the Elation or Mortenax Blade shell already exists. A fuller rank table lives on the 4.5 who to pull ranking.
Is Robin Summeretto worth pulling if I already have original Robin?
Yes if you need a Remembrance buffer or a second Action Advance seat. Original Robin stays Physical Harmony. Summeretto is a new 5-star with her own banner, Light Cone, and Eidolons. Keep the original if that Harmony job still holds a second side.
Should F2P pull Aventurine Waveflair?
Only if Ashveil, Mortenax Blade, or another high-hit partner already lives on the roster. He is a Quantum Elation carry. One guarantee should go to Hyacine or Robin first.
Do I need Ashveil if I pull Waveflair?
You need someone who attacks often. Ashveil is the Phase 2 pair that feeds Fervor. Mortenax Blade covers the same job if you already built him. Waveflair plus 4-star Hunt supports is a thin shell.
When does Honkai Star Rail 4.5 start?
Americas: 25 August 2026. Other servers: 26 August 2026. Phase 1 holds Robin Summeretto and Hyacine through 12 September. Phase 2 holds Waveflair and Ashveil through 27 September. Watch the in-game Warp clock after maintenance.
Conclusion
Honkai Star Rail 4.5 pull guide ranks four seats against the roster you already built. Robin Summeretto is the Phase 1 buffer with the same long shelf life as original Robin. Hyacine is the rerun that stops third-team deaths. Ashveil and Aventurine Waveflair pay off when Mortenax Blade or an Elation core already exists. Bookmark this page for live kit tweaks, and top up Oneiric Shards on BitTopup when the jade plan is set.