Mortenax Blade is the new 5-star character coming to Honkai: Star Rail Version 4.3. He is a brand-new SP form of the original Stellaron Hunter Blade, and fans have been waiting for him since Planarcadia began.
He swaps Wind Destruction for Fire Nihility, which completely changes how he plays. Expect HP-scaling damage, Zone debuffs, and a self-revive trick that keeps him alive in tough fights.
In this preview, we will cover everythinqg we know so far: his release date, leaked skills, Eidolons, lore, materials, best teams, and pull value. Whether you are saving Stellar Jades or planning your warps, this guide has you set.
💎 Low on Stellar Jades for his banner? Top up Oneiric Shards safely and at a discount through GamsGo before Mortenax Blade drops.
⚠️ All info here comes from community leaks and beta test data. Numbers and mechanics may change before launch. We will update this post once HoYoverse confirms official details.
Mortenax Blade Known Overview (Path, Element and Role)
Before we dive into the deep mechanics, let's quickly cover the basics. Mortenax Blade is the second SP (Special Form) of an existing character in the 4.x cycle, following SP Silver Wolf. His core profile looks like this:
| Attribute | Details |
| Rarity | 5-Star |
| Path | Nihility |
| Element | Fire |
| Role | Hybrid Support / Sub-DPS |
| Scaling Stat | Max HP |
| Signature Light Cone | Reforged in Hellfire |
| Banner Phase | Phase 1 of Version 4.3 |
Unlike the original Blade, who hits hard but mostly takes damage to scale up, Mortenax Blade plays like a dual-form unit. Before his Ultimate, he supports the team with debuffs. After his Ultimate, he transforms and becomes a strong AoE damage dealer himself.
Mortenax Blade Combat Skills and Eidolons Leaks
His kit is the heart of the hype. Mortenax Blade trades HP for damage, deploys a Zone that crushes enemy defense, and snowballs Charges from every ally attack. Let's break down each ability one by one.
Basic Attack — A Broken Blade Still Slays |
| A simple single-target Fire hit that deals damage equal to 50% of his Max HP and taunts the enemy for 1 turn. After he enters Infinite Fury, this upgrades to A Tempered Blade Severs Souls, dealing 100% of Max HP instead. |
Skill — A Rain of Blades Seals Fate |
| This is his bread and butter. He spends 15% of his Max HP to deal AoE Fire damage to all enemies, then drops 4 random bounces on top. The kicker? It costs zero Skill Points, which makes him incredibly easy to slot into any team. |
Ultimate — Fornax Ex Corpore (Transformation Trigger) |
| Hands down his most important ability. The Ultimate has three big effects in one cast: • Applies Balefire Bind to all enemies (−30% DEF, +50% DMG taken, 2 turns). • Consumes 30% of his Max HP to deploy a Zone. • Puts him into the Infinite Fury state with +20% CRIT Rate and +60% CRIT DMG. While in Infinite Fury, his Ultimate transforms into Tenax Per Ignem, a massive AoE nuke dealing Fire damage equal to 300% of his Max HP. If he would die in this state, he simply exits the form and heals 50% Max HP instead. |
Talent — All Karma Comes Due |
| While the Zone is up, every ally attack on an enemy applies Balefire Bind and gives Mortenax Blade 1 Charge. At 9 Charges, he automatically launches an extra Skill as a Follow-Up Attack, restoring 25 Energy in the process. This loop is the engine of his entire kit. |
Core Eidolons Worth Knowing
You do not need every Eidolon, but a few stand out for vertical investment. Here is a quick summary of the most impactful ones:
| Rank | Details & Effects |
 E1 | Ere My Death, I Stood Unmade While the Zone is active, decreases all enemies' All-Type RES by 20%. After using the extra Skill from Talent, the "Infinite Fury" countdown has its action delayed by 15%. Recommendation: Most cost-effective. Massive team damage boost. |
 E2 | Ash Was My Heart, Yet the Flame Stayed Increases DMG dealt by extra Skill by 50%. Ally Ultimates are considered Follow-Up Attacks. While Zone is active, other allies' Follow-Up Attacks grant Mortenax Blade 1 Charge (up to 9 times). Recommendation: Great for Follow-Up Attack teams. |
 E3 | Across the Shore, Wrath Laid Bare Ultimate Lv. +2 (Max 15); Talent Lv. +2 (Max 15). |
 E4 | Odium I've Smitten, Thence Came the Blade "Heart, Refined ad Infinitum" additionally increases ally targets' DMG dealt by 50%. Recommendation: Doubles the team-wide DMG buff. |
 E5 | I Severed My Woes, Knowing Death Begets Life Skill Lv. +2 (Max 15); Basic ATK Lv. +1 (Max 10). |
 E6 | If Immortality Could Die, I Swore THEM Slain While Zone is active, Mortenax Blade gains 1 Charge when taking DMG or consuming HP. Trigger count resets after any turn. "Tenax Per Ignem" multiplier increases to 150%. Recommendation: Massive personal damage spike and easier mechanics. |
For most players, E0 is already strong and E1 is the sweet spot for whales.
Mortenax Blade Best Light Cones (Weapon Guide)
Picking the right Light Cone matters a lot for Mortenax Blade. Since he scales off Max HP and works mostly as a debuff-focused sub-DPS or support, I recommends cones that boost his Energy rotation, raise his HP pool, or apply extra debuffs that stack with his Balefire Bind.
Signature Light Cone: Reforged in Hellfire
This is his dedicated 5-star Nihility Light Cone and the strongest option by a wide margin. It is designed around his exact rotation: HP scaling, Skill spam, and CRIT-heavy bursts.
| Signature Light Cone: Reforged in Hellfire | |
 Reforged in Hellfire | Effect (S1, beta values):
|
In short, this cone covers his two biggest pain points: HP scaling and Energy front-loading. If you plan to main him, the weapon banner is worth the pulls.
Mortenax Blade Ascension and Trace Materials
If you plan to pull him, start farming now. His materials line up with Phagousa boss drops and the Lucid Awl / Dreamweave Steel family from Planarcadia. Below is the leaked breakdown so you can plan your weekly stamina trips.
Ascension Materials (Level 1 → 80)
These are needed to raise his level cap and unlock more stats. Save up plenty of Whimsy Wax early since you will need it for both Ascension and Traces.
| Total Ascension Materials (Lv 1-80) | ||
 Credits 308,000 |  Radiant Prominence x65 |  Whimsy Wax x15 |
 Dreamweave Steel x15 |  Lucid Awl x15 | |
Trace Materials (All Skills Maxed)
Trace upgrades are where the real grind lives. The biggest sink is Heart of Phagousa, so prepare to farm that weekly boss often.
| Total Trace Materials (All Maxed) | ||
| Credits ~3,000,000 |  Tracks of Destiny x8 |  Tear of Phagousa x18 |
 Wine of Phagousa x69 |  Heart of Phagousa x139 |  Vanquished Flow x12 |
| Whimsy Wax x41 | Dreamweave Steel x56 | Lucid Awl x58 |
Signature Light Cone Materials (Reforged in Hellfire)
If you plan to pull his weapon banner, you will also need a smaller pile of similar mats.
| Signature Light Cone Materials | ||
| Credits 385,000 | Tear of Phagousa x4 | Wine of Phagousa x12 |
| Heart of Phagousa x15 | Whimsy Wax x20 | Dreamweave Steel x20 |
Pro tip: Pre-farm Calyx materials before 4.3 launches so you can skip straight to Tracks of Destiny grinding on release day.
Best Mortenax Blade Team Comps (Speculation)
Mortenax Blade's third Bonus Trace, Heart, Refined ad Infinitum, gives different buffs depending on his teammates' Path. Pair him with another Nihility unit and the team gets bonus Ultimate DMG; pair him with Follow-Up Attack carries and his Talent procs free Skill nukes. Based on current beta data, two team archetypes stand out.
Team 1: FuA Dream Team (Best Overall)
This is the most popular comp. Ashveil's constant follow-ups stack Mortenax Blade's Charges fast, and Tribbie keeps adding HP, Vulnerability, and RES PEN to the whole team.
| Slot | Recommended Unit | Role |
| Main DPS | Follow-Up engine, DEF shred | |
| Sub-DPS / Support |  Mortenax Blade | Zone debuffs, AoE damage |
| Support |  Tribbie | HP buff, Vulnerability, RES PEN |
| Sustain | HP buff + healing |
Team 2: Acheron Nihility Stack
Mortenax Blade is one of the strongest partners ever made for Acheron. His Zone auto-applies Balefire Bind every time an ally attacks, which feeds Acheron's Ultimate gauge constantly. He also fulfills the Nihility requirement for her Major Trace.
| Slot | Recommended Unit | Role |
| Main DPS |  Acheron | Lightning Nihility hypercarry |
| Sub-DPS | Mortenax Blade | Debuff feeder, Ultimate buffer |
| Support |  Jiaoqiu | Extra debuffs + DMG amp |
| Sustain |  Hyacine | Mandatory healer |
Key Team-Building Rules
Across both comps, a few rules stay the same. Keep these in mind when slotting Mortenax Blade into your roster.
- Always run a healer, not a shielder. Shields block his Charge generation and HP loss.
- Hyacine is BiS sustain because she scales HP and heals at the same time.
- Avoid Preservation supports like Gepard or March 7th.
- At least one Nihility ally unlocks the Ultimate DMG buff from his Trace.
Who Is Mortenax Blade?
Mortenax Blade is the SP (Special) form of Blade, whose real name is Yingxing. The original Blade is a member of the Stellaron Hunters and a swordsman who abandoned his body to become a blade. He pledges loyalty to Elio (Destiny's Slave) and carries a terrifying self-healing ability.
Character Background & Story
Yingxing was once a master craftsman of the Xianzhou Alliance and a member of the legendary High-Cloud Quintet. After the Sedition of Imbibitor Lunae, he was turned immortal through a forbidden ritual, lost most of his memories, and joined the Stellaron Hunters under Elio.
His Mortenax Blade form appears in the Planarcadia storyline, the dream-realm of the Aeon Aha. HoYoverse's official teaser describes him in haunting poetry:
"A body like spring wood, a heart like dead ashes, yet the sparks of a craftsman still linger at the fingertips. As ancient grudges are ignited once more, he promises to send both himself and the gods to the other side... Torn flesh, tempered a thousand times into a blade... what kind of answer will it forge?"
In short, this form is what happens when Yingxing's craftsman soul wakes up inside Blade again, fueled by old grudges and a new will to kill even gods.
Visual Design and Outfit Changes
Mortenax Blade gets a complete redesign that throws out his old outfit. Instead, his new look leans into raw, broken imagery, like a weapon that has been reforged in fire.
Key design details from his splash art include:
- Red and white bandages wrapped tightly around his torso and arms, like fresh wounds or a forge wrapping.
- Black combat trousers and heavy boots, a sharp contrast to his former Xianzhou-style robes.
- A literal flame bursting from his heart, which is the visual core of his Fire Nihility identity.
- A mysterious dark male figure standing behind him in official art, widely believed to be tied to Shuhu, an enemy connected to the Galaxy Rangers.
The whole design reads like a confession: this is a man who has stopped hiding what he is.
Mortenax Blade Relationships in HSR
Mortenax Blade carries decades of personal history with several iconic characters. Knowing these ties makes his story moments hit much harder.
- Dan Heng / Imbibitor Lunae: Former close friend. Their broken bond is the core of Blade's pain and the reason he became immortal.
- Jingliu: His swordsmanship mentor after his exile. Jingliu taught him swordplay, but also killed him multiple times to remind him of the karma of his past actions. Fandom
- Jing Yuan: An old acquaintance from the High-Cloud Quintet era who still calls him an “old friend.”
- Kafka & Silver Wolf: Fellow Stellaron Hunters and his current teammates under Elio.
This new form gives long-time fans a fresh angle on a character many have loved since version 1.2.
HSR Banner Schedule and Pull Value (Version 4.3 - 4.4)
Now for the part that hits the wallet. Let's talk timeline and whether he is worth your warps.
Core Banner Timeline and Release Date
Mortenax Blade is a new 5-star Fire and Nihility character that will likely be released in Phase 1 of Version 4.3. Mortenax Blade's banner is expected to run from June 02, 2026 (UTC-5) until June 24, 2026 (Server Time), if 4.3 follows the usual 6-week schedule.
| Event | Expected Date |
| HSR 4.3 Special Program | 2026.5.22 |
| Version 4.3 Launch | June 2–3, 2026 |
| Mortenax Blade Banner Phase 1 | June 2–24, 2026 |
| Phase 2 (Reruns) | June 24 – July 15, 2026 |
| Version 4.4 (Fate Collab) | Mid-July 2026 |
Latest leaks confirm the Fate Collab is pushed to 4.4 banner. 4.3 will highly likely only feature Mortenax Blade as a new character. Furthermore, Gilgamesh will be a free character.
Is Mortenax Blade Worth Pulling?
Short answer: Yes, for most account types. Here is the longer breakdown:
- F2P / Low Spenders: Skip if you are saving for the Fate Collab in 4.4 (Gilgamesh is free, Rin Tohsaka is paid). Pull only if your Nihility roster is weak.
- Mid-Spenders: Aim for E0 — he is already a powerful universal support at base.
- Whales: E0S1 is the sweet spot; E1S1 unlocks 20% RES PEN, which is the strongest single jump.
- Skip if: You already own Acheron, Sunday, Sparkle, and Robin — your support bench is full.
Because 4.3 only has one brand-new 5-star, this is the easiest patch in months to plan around. Start saving now and you will be in great shape.
🔥 Need more Stellar Jades for Mortenax Blade? Top up safely and grab massive discounts on Oneiric Shards through GamsGo — official partnership, fast delivery, zero account risk.
Summary
Mortenax Blade is one of the most exciting SP reworks in Honkai: Star Rail's history. He brings universal team buffs, automatic debuff application, free Skill spam, and a built-in second life mechanic that makes him hard to kill.
Combined with deep lore ties to Yingxing, Dan Heng, and the Stellaron Hunters, he is a unit both meta chasers and story fans should keep on their radar.
With his banner expected to drop in early June 2026 and only one new 5-star in the entire patch, Version 4.3 is the perfect chance to plan ahead. Save your Jades, pre-farm Phagousa drops, and get ready for one of the most stacked supports in the game.
Mortenax Blade FAQ
Q1: When does Mortenax Blade release in HSR?
Mortenax Blade is expected to launch in Phase 1 of Version 4.3 on June 2–3, 2026, with his banner running until around June 24, 2026.
Q2: Is Mortenax Blade a main DPS or a support?
He is a hybrid Sub-DPS and Support. Before his Ultimate he supports the team with debuffs; after activating Infinite Fury, he flips into an AoE damage dealer.
Q3: What element and path is Mortenax Blade?
He is a 5-Star Fire Nihility character. His damage scales off Max HP, not Attack.
Q4: Should F2P players pull Mortenax Blade?
Pull if your Nihility roster is weak or if you own Ashveil / Acheron. Skip if you are saving for the Fate/stay night collab in Version 4.4, since Gilgamesh will be free.
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