HSR4.3 Preview Summary: New SP Character Mortenax Blade, Fate Part 2 Collaboration!

I. Version 4.3 Core Information

Item	Details
Version Name	The Lethe Below the Living
Release Date	June 1, 2026, running until July 13
Main Content	A new Trailblaze Mission focused on Blade’s fated conclusion and the secrets hidden within the painted world

II. New Character & Warp Schedule

1. New Character: Mortenax Blade

Mortenax Blade is a new 5-star character in Version 4.3. He follows the Path of Nihility, has the Fire combat type, and is positioned as a main DPS / core damage dealer.

His kit continues the classic Blade-style gameplay of consuming HP to deal damage, while adding stronger battlefield control and burst mechanics.

Core Mechanics:

• HP consumption damage: Retains the classic mechanic of using HP as an offensive resource.

• Enemy taunt mechanic: Can draw enemy attacks, improving his field presence and team rotation stability.

• Ultimate field effect: His Ultimate creates a special field that enhances himself, upgrading both his Skill and Basic ATK.

• Second-stage Ultimate finisher: After entering the enhanced state, he can unlock a second-stage Ultimate to deal AoE finishing damage.

Exclusive Pull Reward:

Players who obtain Mortenax Blade will receive the free Trailblazer back accessory / outfit component “Karmic Fire Beyond the Shore”. This makes the banner more attractive for collectors and players who value character cosmetics.

2. Warp Schedule

Phase	Time	Featured Characters
Phase 1	June 1 – June 22	Mortenax Blade (New) + Yaoguang (Rerun)
Phase 2	June 22 – July 13	Cerydra (Rerun) + Phainon (Rerun)

III. Pull Recommendation: Is Mortenax Blade Worth Pulling?

Based on the preview information, Mortenax Blade is more suitable for the following players:

• Players who want to build an HP consumption / self-damage team.

• Players who lack a strong Fire main DPS.

• Players who need a DPS with field presence, burst damage, and AoE finishing potential.

• Players who like Blade-related storylines, Stellaron Hunter lore, and character collection value.

If you already have several well-built main DPS units and your Stellar Jade budget is limited, it may be better to wait for final numbers, team testing, and real combat performance after release. However, if you need a Fire DPS or enjoy Blade-style gameplay, Mortenax Blade is likely one of the most important Phase 1 banners to consider in Version 4.3.

For players planning their resources across banners, it is also worth managing your purchase budget carefully. If you need more in-game resources, a secure HSR top up option can help you prepare for Mortenax Blade, his Light Cone, or future collaboration banners without disrupting your overall Stellar Jade plan.

IV. Main Story, New Map & New Relics

New Trailblaze Mission: The Lethe Below the Living

Version 4.3 continues the story arc of the Phainon realm, focusing on the journey of the Trailblazer and Mortenax Blade. Players will enter the painted world known as Duhua Springscape, confront the threat of the Lord Ravager Ashat Pramadh, and uncover the secret behind the divine remains of the Aeon of Voracity.

Blade will attempt to use the power of Voracity to dissolve the curse within his body. Whether this leads to rebirth or death will be revealed through the main story.

1. New Maps:

• Duhua Springscape: A painted domain located at the boundary between the living world and the painted realm.

• Expanded Area of the Two-Phase Paradise: A continuation of previous map and story content, revealing more world-building details.

2. New Boss & Elite Enemies:

• Immeasurable Tower, World Painter: A new boss related to the origin of the painted world.

• God-Devouring Offspring: A new elite enemy, likely connected to the Voracity storyline and new Relic material drops.

3. New Relics:

Version 4.3 introduces two new Cavern Relic sets:

1. Navigator Seen by the Stars
   A general DPS Relic set suitable for multiple main DPS characters. It focuses on increasing CRIT potential and overall damage ceiling.

2. Artisan Who Questions Heaven’s Craft
   A Relic set more specifically designed for Mortenax Blade. It enhances the value of HP consumption and field-based damage, significantly improving his core output.

V. Version Events & Rewards

Event Category	Event Name	Core Content	Main Rewards
Version Reward Event	Gift of Odyssey	Version login reward event. Log in during the event period to claim milestone rewards	10 free pulls, material gift boxes, 300 Stellar Jades in total
Version Reward Event	Pixel Plane Battle Royale	Casual roguelike mini-game. Complete stage challenges to unlock rewards	Stellar Jades, character materials, limited avatar frame
Version Reward Event	Dust Spirit Amusement Park	Simulation management story event. Unlocks exclusive story content for Mortenax Blade	Event-exclusive Light Cone, Relic enhancement materials
Version Reward Event	Blade Tempering Ceremony	Exclusive character mission for Mortenax Blade. Complete the mission to unlock related rewards	Trace materials, free back accessory “Karmic Fire Beyond the Shore”
Gameplay System Update	Abyssal Star Awakening Mode: Three-Team Challenge	The highest difficulty of Memory of Chaos, Pure Fiction, and Apocalyptic Shadow will add a three-lane team challenge. Players must use 3 separate teams. Single-stage retry is supported, and players can switch back to the regular mode at any time	100 extra Stellar Jades for full-star clearance in each mode, 300 Stellar Jades in total

VI. Major Collaboration: Fate Part 2 Collaboration

Following the first collaboration, the Honkai: Star Rail × Fate/stay night [Unlimited Blade Works] Part 2 collaboration has been officially announced and is scheduled for summer 2026.

Collaboration Characters:

• Rin Tohsaka

• Gilgamesh

Among them, the 5-star collaboration character Gilgamesh will be available for free during the collaboration period, making this event especially valuable for Fate fans and collectors.

Collaboration Story:

In the collaboration storyline, Rin Tohsaka summons the Trailblazer as a Servant, while Gilgamesh enters the Honkai: Star Rail universe, setting the stage for a cross-dimensional confrontation.

Collaboration Rewards:

• Collaboration-exclusive Warp

• Collaboration story event

• Limited outfits and avatars

• Rerun of Part 1 collaboration items

Summary

Version 4.3 of Honkai: Star Rail, “The Lethe Below the Living,” appears to be one of the most content-heavy and reward-rich updates so far. Mortenax Blade brings a major continuation of Blade’s storyline, the Fate Part 2 collaboration adds strong fan-service appeal, and the new three-team endgame challenge gives veteran players more difficult content to clear.

With free Stellar Jades, login rewards, a free outfit accessory, new Relics, and a major collaboration on the horizon, Version 4.3 is shaping up to be a highly anticipated update for both story-focused and meta-focused players.

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FAQ

Q1: Is Mortenax Blade hard to build, and what teams does he fit?

A: Mortenax Blade is a 5-star Fire Nihility DPS. He is expected to work well in HP consumption teams, self-damage setups, and fast burst compositions. Once his dedicated Relic set is fully built, his damage ceiling should be very high.

Q2: Which characters are included in the Fate Part 2 collaboration? Can any of them be obtained for free?

A: The announced collaboration characters include Rin Tohsaka and Gilgamesh. Gilgamesh will be obtainable for free through the collaboration event, while Rin Tohsaka is expected to be available through the collaboration Warp.

Q3: Which new Relic set should players farm first?

A: If you plan to build Mortenax Blade, prioritize Artisan Who Questions Heaven’s Craft. For players who want a more universal DPS option, Navigator Seen by the Stars should offer better general value.