Honkai Star Rail 4.5 Summer Alts: Robin and Aventurine Arrive

Trailblazers facing two new summer alts in Honkai Star Rail 4.5 have a tough choice. The update brings Robin Summeretto and Aventurine Waveflair as limited 5-star variants with kits aimed at endgame play. Meanwhile, Version 4.6 and 4.7 leaks tease powerful units like Pearl, Evanescia, and Nihilux. Every Stellar Jade matters more than usual.

This guide covers banner schedules, team synergies, and pull recommendations for free-to-play players, light spenders, and whales.

Banner schedule

Phase 1 runs from August 25 to September 16, 2026, featuring Robin Summeretto. Phase 2 starts September 16 and ends October 6, 2026, featuring Aventurine Waveflair. Hyacine and Ashveil appear as reruns during the patch, though official materials have not confirmed their exact phases. All dates come from community tracking and leaks, so Hoyoverse may adjust them.

Robin Summeretto overview

Robin’s base form is already one of the strongest Harmony units. Her Summeretto variant keeps that support identity while adding follow-up and ultimate-based effects. Leakers describe her as a sidegrade to the original Robin. If you missed Robin the first time, Summeretto is a strong premium Harmony option. If you already own the base version, consider your second-team needs before pulling.

Aventurine Waveflair overview

Aventurine’s original kit combines thick shields with follow-up attacks, making him a reliable sustain pick. Waveflair keeps the defensive core and may add new synergies tied to the summer theme. Players without Fu Xuan or Luocha will find real value here. Low-spenders who struggle to survive Simulated Universe’s higher difficulties should give Waveflair serious thought.

Team synergies

Robin Summeretto teams

Hypercarry setup: Summeretto with Acheron, Pela, and Fu Xuan. Action advance helps Acheron stack faster for quicker ultimates.
Follow-up focus: Summeretto with Dr. Ratio, Topaz, and Aventurine. Buffs amplify follow-up damage.
Break effect team: Summeretto with Ruan Mei, Harmony Trailblazer, and Gallagher if her kit includes break support.

Aventurine Waveflair teams

Preservation core: Waveflair with Jingliu, Bronya, and Pela. Thick shields keep Jingliu alive while she drains HP.
Follow-up engine: Waveflair with Dr. Ratio, Topaz, and Robin. His own follow-up attacks add damage.
Simulated Universe safety: Waveflair with Kafka, Black Swan, and Ruan Mei. Shields protect DoT teams through long fights.

Pull recommendations

Free-to-play players should check their Memory of Chaos rosters. That mode demands two full teams, and Robin Summeretto can anchor one. If you already run Ruan Mei plus Sparkle, skipping is reasonable. Spenders can weigh Aventurine Waveflair against their current sustains. His shields enable aggressive playstyles that healers cannot match. Whales collecting every limited 5-star will pull both. Everyone else should watch 4.6 and 4.7 roadmaps. Nihilux in particular could shift the meta harder than two summer alts.

Events and promotions

Version 4.5 will run summer-themed events, with typical login bonuses and Stellar Jade giveaways. The LDShop Spring Sale offers promo code LDAPR for up to 10 percent off top-ups. Use it at checkout if you plan to spend.