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The Honkai: Star Rail community is currently buzzing with a massive wave of early leaks regarding the upcoming Version 4.3 update. 4.3 is highly likely to feature SP Blade (Mortenax Blade) as the only new character, while the highly anticipated Fate/Stay Night crossover has been shifted to Version 4.4. Whether you are saving up your Stellar Jades or planning your future team comps, we have summarized all the essential intel you need to know about the Honkai Star Rail 4.3 era.
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Honkai: Star Rail 4.3 Version Overview
While official details are still pending, the Version 4.3 update is expected to center entirely on SP Blade (Mortenax Blade). This version marks a strategic period before the monumental Fate/Stay Night [Unlimited Blade Works] Collaboration (Part 2) in 4.4. Sharp-eyed players have noted that the dev schedule for 4.3 is heavily skewed towards introducing Mortenax Blade's new mechanics, making it one of the most anticipated updates in the game's history.
System & Event Optimizations
- Transformation Visuals: With the introduction of multi-form characters like SP Blade, developers are reportedly optimizing the engine to handle seamless in-battle model swaps, his new "Zone" deployment, and enhanced particle effects.
- F2P Goodie Alert: To help players prepare for the Fate collaboration in 4.4, insiders suggest a massive "Log-in" event. Players will also be able to pre-farm 4.3 materials for the upcoming free Gilgamesh unit.
Banner Release Date and Schedule
Based on current community pacing and the latest datamined info, 4.3 is highly likely to feature SP Blade as the only new character, with the remaining slots filled by standard rerun banners. Each phase is projected to last approximately 21 days.
| Phase | Banner Type | Start Date (Projected) | End Date (Projected) |
|---|---|---|---|
| Phase 1 | SP Blade (Mortenax Blade) | Mid 2026 | TBD |
| Phase 2 | TBD Reruns | Mid 2026 | TBD |
Honkai: Star Rail 4.3 Banner Leaks
To help you manage your resources, I’ve distilled the most anticipated leaks regarding the upcoming roster. The heavyweight characters for these versions are as follows:
- SP Blade (Mortenax Blade) [Version 4.3]:
- Element: Fire
- Path: The Nihility
- Role: HP-Scaling DPS / Support / Follow-Up Hybrid
- Fate/Stay Night Collab Units [Version 4.4]:
- Gilgamesh: Destruction (Free Unit, uses 4.3 Mats)
- Rin Tohsaka: Playable Gacha Unit
New Characters in Honkai: Star Rail 4.3
1. SP Blade (Mortenax Blade)
- Mechanics Breakdown: Mortenax Blade scales off Max HP. His Ultimate inflicts "Balefire Bind" (lowering DEF and increasing DMG taken), consumes 30% of his HP, and deploys a Zone. This puts him in the "Infinite Fury" state, unlocking a new Ultimate ("Tenax Per Ignem") and a 0-SP-cost Skill. He can also store up to 80 Energy overflow!
- Combat Evaluation: He is designed as a "Power Budget" core for the 4.X meta. While his Zone is active, he provides a massive 50% DMG increase to allies. He accumulates Charges when allies attack, eventually unleashing his Skill as a free Follow-up Attack (FuA). He is expected to be the premier centerpiece for FuA-centric speedrunning.
2. Fate Collab Units (Gilgamesh & Rin)
Right now, specific skill modules for the collab units are being kept under tight wraps. However, we now know they are slated for Version 4.4. Gilgamesh will be a free Destruction unit, while Rin Tohsaka will be a premium gacha unit. As soon as new datamined info regarding their actual kits drops, I will update this article immediately.
New Weapons in 4.3 (Signature Light Cones)
Regarding the Light Cone Banners, reliable leakers have provided the following directions for SP Blade's signature equipment:
SP Blade’s Signature Light Cone:
- Passive Stats: Likely provides a percentage boost to Max HP and DMG when attacking enemies with specific debuffs like "Balefire Bind".
- Transformation Synergy: Grants a massive ATK or Crit DMG bonus during the enhanced state following his transformation into "Infinite Fury".
- Status Bonus: Triggers an additional independent multiplier when attacking enemies in a debuffed state (synergizing with his Nihility path).
Fate Collab Weapons: Since they are releasing in 4.4, we recommend a "wait-and-see" approach for these banners.
Should You Pull in 4.3?
Don't pull blindly; consider your current roster and meta goals:
- If you are a Follow-up Attack (FuA) Main: Pull SP Blade without hesitation. His ability to buff team DMG by 50% while dealing massive 0-SP AoE damage makes him future-proof for several versions.
- If you are a Collector: Because 4.3 only has one new character and Gilgamesh is free in 4.4, you can safely pull for Mortenax Blade now while saving enough remaining Jades for Rin Tohsaka later.
- Waifu/Husbando Pullers: If you’ve been waiting for Blade to return in his rumored "formal suit" (正装) variant, this is your moment. His visual effects are reportedly the most spectacular seen in the game to date.
Honkai: Star Rail 4.3 FAQ
Q: Will the Fate collab characters be in 4.3?
A: No. Latest leaks confirm the Fate Collab is pushed to 4.4. 4.3 will highly likely only feature Mortenax Blade as a new character. Furthermore, Gilgamesh will be a free character.
Q: Why is SP Blade Nihility instead of Destruction?
A: Leaks suggest this shift allows him to apply "Balefire Bind" and provide team-wide utility (supporting the FuA team's "Power Budget" with a 50% DMG aura) while still maintaining high personal DPS through his HP-consuming transformation.
Conclusion
In summary, the upcoming Honkai: Star Rail 4.3 version is undeniably a turning point. As the only new character, the game-breaking transformation mechanics and team-buffing abilities of SP Blade (Mortenax Blade) mean Version 4.3 is destined to be a high-water mark for the game's meta evolution. With the Fate collab moving to 4.4 and Gilgamesh being free, you have the perfect opportunity to strengthen your account now. Start saving your Stellar Jades!
Disclaimer: All information regarding Honkai Star Rail 4.3 is based on early leaks and data. HoYoverse frequently adjusts character kits, names, and release schedules prior to official announcements.
May 19, 2026
Honkai: Star Rail (HSR)
