The Honkai: Star Rail community is currently buzzing with excitement following the official broadcast of the Version 4.3 update. Version 4.3 features the arrival of Mortenax Blade and Yao Guang as featured rate-up characters, while the highly anticipated Fate crossover has been officially teased for an upcoming summer release. Whether you are saving up your Stellar Jades or planning your future team comps, we have summarized all the essential intel confirmed in the Honkai Star Rail 4.3 program.
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Honkai: Star Rail 4.3 Version Overview
The Version 4.3 update is officially titled "The Lethe Below the Living" and centers on a high-stakes crisis in Planarcadia. The storyline follows the official entrance of Lord Ravager Asat Pramad and the uncovering of an earth-shattering secret: the sealed divine husk of the Aeon of Voracity. To eradicate the plague of Shuhu once and for all, Blade must depart for the final boundary of Inkford Hermitage and venture into the mysterious World in Canvas to execute a life-or-death plan.
System & Event Optimizations
- Home Screen Widgets & Settings: A new mobile widget feature allows players to check remaining event rewards and daily progress directly on their device home screens. Additionally, in-game settings like auto-battle preferences now support cross-device synchronization.
- Starward Mode & Dails: A new permanent daily task allows players to quickly gain activity milestones by utilizing Fuel Vouchers or Deep Immersifiers. Furthermore, an ultra-difficulty "Starward Mode" is being added to Memory of Chaos, Pure Fiction, and Apocalyptic Shadow, requiring players to build three teams for three distinct stages to claim an extra 300 Stellar Jades per period.
Banner Release Date and Schedule
The Version 4.3 update will officially launch on Monday, June 1st. The banners are split into two halves, showcasing a stellar lineup of new limited arrivals and highly requested character reruns.
| Phase | Banner Type | Start Date (Official) | End Date (Projected) |
|---|---|---|---|
| Phase 1 | Mortenax Blade / Yao Guang | June 1, 2026 | 21 Days After Launch |
| Phase 2 | Cyrene / Phainon Reruns | June 22, 2026 | End of Version 4.3 |
Honkai: Star Rail 4.3 Banner Lineup
To help you manage your Warp resources, we have compiled the definitive details regarding the Version 4.3 and upcoming crossover rosters announced during the program:
- Version 4.3 Featured Limited 5-Stars:
- Mortenax Blade: Fire Attribute, Enhanced Stance-Shifter
- Yao Guang: Boosted Drop-Rate Featured 5-Star Character
- Crossover Teaser Characters [Arriving in Version 4.4]:
- Gilgamesh (5-Star, The Destruction, Lightning): The King of Heroes will be obtainable completely free during the event.
- Rin Tohsaka (5-Star, The Erudition, Quantum): The prodigy of the Tohsaka family arrives as a premium gacha unit.
New Characters in Honkai: Star Rail 4.3
1. Mortenax Blade

- Mechanics Breakdown: Mortenax Blade utilizes his body as a furnace to re-forge his broken sword. When casting his Ultimate, he deploys a special combat Zone and enters an enhanced state, displaying a completely transformed physical model. In this enhanced state, his main Skill is replaced by a powerful rain of swords to deal high damage to groups of enemies.
- Combat Evaluation: While his Zone is active, all enemies are afflicted with a debuff and take increased damage. Every time an ally attacks an enemy, it applies a debuff stack and builds a special Charge for Blade. Once his Charge is fully maxed out, Mortenax Blade automatically unleashes an extra, out-of-turn Skill attack classified strictly as a Follow-Up ATK while restoring extra energy. His Technique allows him to strike enemies to initiate battle, Taunting targets while lowering his own damage taken.
2. Crossover Teaser Units (Gilgamesh & Rin Tohsaka)

The final moments of the special program broadcast dropped an official animated teaser confirming that the Holy Grail War begins anew this summer in Version 4.4. The preview specifically showcased the upcoming debut of Rin Tohsaka (5-Star Erudition: Quantum) and Gilgamesh (5-Star Destruction: Lightning). Notably, Gilgamesh is confirmed to be a free event reward, while Rin Tohsaka will be obtainable via a limited-time character Warp banner. Full kit reveals and official gameplay modules are expected to drop closer to the Version 4.4 launch on July 24, 2026.
New Weapons in 4.3 (Signature Light Cones)
The special program confirmed the official names and availability windows for the brand new 5-star equipment pieces appearing on the Version 4.3 weapon banners:
Phase 1 Light Cone Rate-Up Banners:
- Reforged in Hellfire: The official signature 5-star Light Cone tailored directly for Mortenax Blade, maximizing his combat output during his flame-wreathed enhanced state.
- When She Decided to See: The official limited 5-star Light Cone running concurrently alongside Yao Guang's rate-up banner character event.
Phase 2 Light Cone Return Reruns: Phase 2 weapon banners will feature the official return of the limited 5-star Light Cones "This Love, Forever" (Cyrene's signature) and "Thus Burns the Dawn" (Phainon's signature).
Should You Pull in 4.3?
Don't pull blindly; consider your current roster and meta goals following the official broadcast details:
- If you rely on Follow-up Attack (FuA) Archetypes: Mortenax Blade is an exceptional addition. His unique Zone lets fast-attacking allies build his Talent charges rapidly, fueling automatic out-of-turn Follow-Up Attacks while keeping his enhanced Skill active at a clean 0-SP cost.
- If you enjoy exclusive Cosmetic Mementos: Version 4.3 introduces a special "Gift of Tempered Blade" event. Successfully pulling Mortenax Blade from his Warp rewards players with a free piece of Trailblaze Fashion for an entirely new gear slot: the divine ring cosmetic titled Karmic Fire of the Distant Shore.
- Resource Management Savers: With Phase 1 locking down Mortenax Blade and Yao Guang, and Phase 2 featuring Cyrene and Phainon reruns, players can carefully budget their remaining Stellar Jades for the upcoming Version 4.4 Holy Grail crossover featuring the free 5-star Gilgamesh and the limited 5-star Rin Tohsaka.
Honkai: Star Rail 4.3 FAQ
Q: Will the crossover characters be playable in 4.3?
A: No. The Version 4.3 special program officially concluded with a teaser trailer confirming that the Holy Grail crossover units—Gilgamesh (Destruction: Lightning) and Rin Tohsaka (Erudition: Quantum)—will make their grand entrance in the subsequent Version 4.4, launching on July 24, 2026. Gilgamesh will be a free event reward.
Q: What new farmable materials and Relic domains are added in 4.3?
A: Version 4.3 adds the Cavern of Corrosion: Path of Insight to farm two brand new Relic sets: As Navigator Isee Sees It and Divine-Querying Master Smith. It also opens Stagnant Shadow: Shape of Devour to drop the Sneering Harlequin ascension material for Quantum characters, alongside new Trace materials for Erudition and Destruction paths.
Conclusion
In summary, the upcoming Honkai: Star Rail 4.3 version is undeniably a turning point for the game's unfolding narrative and meta evolution. With Mortenax Blade's spectacular model-shifting combat transformations, the introduction of a new cosmetic slot, a robust lineup of limited events like "Pixel Plane Rumble" and "Wispae Amusement Park," and a massive summer crossover on the horizon, players have an incredible patch ahead of them. Mark your calendars for June 1st and get ready to dive in!

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