MECH

Lightning

Scarlet Fusion

Murata Himeko

TierC

RolesDPS

Release1.8

Scarlet Fusion is Himeko's A-rank MECH-type Lightning greatsword battlesuit from v1.8. Her Heavy Sword combo deals Physical DMG and rewards well-timed Perfect Combos, and her Ultimate, Nexus Unlock, is a burst mode in which every attack fires a piercing Lightning light blade. From S rank, entering burst mode paralyzes nearby enemies and her QTE triggers on Time-Slowed enemies. She has no Astral Ring and is obsolete in 9.0: only worth playing in older content.

Build Create a build card

Burst mode DPS

Weapons

Blood Dance BiS

BBS pick: its active makes enemies take 60% more Elemental DMG, which boosts her Lightning light blades.

The active (20 SP) whips up a blood tornado (9 x 35% ATK of Physical DMG) that sends enemies into Blood Rage for 9s: they attack twice as fast but take 60% more Elemental DMG; +30% Physical DMG above 15 combo hits, and off-field healing below 50% HP.

Cleaver of Shamash

BBS transitional pick: +13% Total DMG and bonus Fire DMG on every hit after its active.

Greatsword form of Judgment of Shamash: its active adds 500 Fire DMG to every Basic, Combo, Charged and Ultimate hit for 10s at the cost of a little HP; +13% Total DMG, plus damage reduction and healing below 50% HP.

Judgment by Dawn

Craftable fallback (not a BBS pick): +50% Attack Speed and +25% Crit Rate after the active, and crits can impair enemies.

Craftable greatsword: its active gives +50% ATK Speed and +25% Crit Rate for 8s, and crits can impair enemies (-50% DEF).

Stigmata

Turgenev T Top

Avogadro M Middle

Turgenev B Bottom

BBS recommendation: Turgenev T/B mark enemies so they take 21% more Elemental DMG, and Avogadro (M) shortens the weapon active CD and buffs the team after it.

Set effects

2pRebel's Gun set. Every 6 hits from the wearer or her summons extend Hunter Mark (applied by the B piece) by 2s, up to 12s; marked enemies take 21% more Elemental DMG.

3pThe wearer's Ultimate and summons deal 25% more Total DMG; while her summons are on the field, the team deals 25% more Ice DMG to marked enemies.

2p30 initial SP and weapon skills cost 15% less SP (M piece: weapon skill CD -30% and the team gains 10% Total DMG for 12s after it).

3pTotal DMG +15%; the weapon skill marks its target, which explodes after 10s, and marked enemies take 15% more Total DMG from the wearer.

Critic T Top

Critic M Middle

Isaac Newton B Bottom

BBS alternative: Jin Shengtan's field gives 30% Elemental DMG and makes enemies take 10% more Elemental DMG; Isaac Newton (B) raises her damage in Challenge Mode, at the cost of taking more damage.

Set effects

2pJin Shengtan set. Attacks create a Blue Phoenix field (6s, CD: 9s): allies inside deal 30% more Elemental DMG and enemies inside take 10% more Elemental DMG.

3pThe field lasts 3s longer and protects allies against Ice; weak hits no longer interrupt the wearer.

2pLaws of Motion set. Total DMG +10%; Basic, Combo and Charged ATKs have a 10% chance to slow, impair or weaken enemies for 10s, or to inflict 3 Trauma (CD: 2s).

3pEvery second, Basic ATKs (Combo and Charged ATKs included) gain a 20% Total DMG Multiplier (5 stacks max); attacking consumes the buff and starts a 7s cooldown.

Theresa: Gluttony T Top

Beach Party M Middle

Isaac Newton B Bottom

BBS utility mix: Theresa: Gluttony (T) drops candies that give the team up to 24% Total DMG, and Mei: Beach Party (M) gives her 18% Total DMG and makes enemies she hits take 15% more Total DMG.

Set effects

2pSingle Top piece with no set bonus: enemies drop candies that give the team 16% Total DMG for 5s (24% when picking up another one).

2pAttacks have a 12% chance to summon HOMU King, who knocks enemies down for 450% ATK of Physical DMG (CD: 16s).

3pWhen HOMU King appears, every ally gets a Flame Wreath that burns nearby enemies for 6s.

2pLaws of Motion set. Total DMG +10%; Basic, Combo and Charged ATKs have a 10% chance to slow, impair or weaken enemies for 10s, or to inflict 3 Trauma (CD: 2s).

3pEvery second, Basic ATKs (Combo and Charged ATKs included) gain a 20% Total DMG Multiplier (5 stacks max); attacking consumes the buff and starts a 7s cooldown.

Stat targets

Reach S rank first: QTE, burst activation Paralyze and +40% Total DMG against ignited or bleeding enemies
Hit two Perfect Combos in a row to charge the Spinning Blade and refill SP
Only activate Nexus Unlock with a large SP pool

Talent priority

Ultimate

Basic ATK

Special ATK

Passive

Evasion

Leader

Where to get her: fragments from Expeditions, the Asterite Shop, Dorm Shop, Elysian Shop, Witch's Corridor, Sakura Samsara and the Armada Warehouse (Fandom). Her leader skill only gives the team 30% Total DMG on switch attacks, so lead with someone else.

Teams

Recommended teams

Part 1 Lightning QTE team

Scarlet Fusion

Divine Prayer

Valkyrie Chariot

Lead with Divine Prayer for +32% team Elemental DMG. Valkyrie Chariot's Ultimate Evasion slows every enemy (Scarlet Fusion's QTE), Scarlet Fusion's Paralyze triggers Divine Prayer's QTE, and Divine Prayer impairs a target from standby. Older content only.

Free starter trio

Scarlet Fusion

Shadow Dash

White Comet

White Comet's Ultimate Evasion triggers a Global Time Fracture (Scarlet Fusion's QTE) and restores team SP, which helps fund Nexus Unlock; Shadow Dash leads for the team Crit Rate and keeps illusions on the field.

Guide

How to play

Perfect Combo

Basic ATK Heavy Sword is a 3-hit Tri-Strike (150%, 180% and 250% ATK). Tap [ATK] again when a flashing circle appears on her for a Perfect Combo: that hit gains Crit Rate and bonus Lightning DMG, and she briefly gains Ignore Interrupt and 50% damage reduction.
Two Perfect Combos less than 2s apart charge her blade: within 10s, her next Sprinting Zornhut also throws a Spinning Blade (3 hits, up to 500% ATK of Lightning DMG each), and each hit restores 4 SP.

Fusion Assault

Hold [ATK] on the spot for Sprinting Zornhut: she pushes the enemy forward, then launches it on release (400% ATK). While sprinting, tap [ATK] for a jump cleave (500% ATK), with bonus Lightning DMG.
Switch entry: an Onrush Slash (450% ATK) that knocks enemies airborne. From S rank, her QTE triggers on Time-Slowed enemies and adds a Lightning light blade with 5 Paralyze Trauma.

Ultimate: Nexus Unlock

A burst mode that needs over 100 SP: it costs 20 SP, then 10 SP per second (up to 60s), and enhances her attacks, Attack Speed and Interrupt.
In burst mode, every attack fires a piercing light blade (321% ATK of Lightning DMG). From S rank, activating it deals 400% ATK of Lightning DMG and 5 Paralyze Trauma around her; from SS, her Tri-Strike light blades also inflict 3 Bleed Trauma.
From S rank, she deals 40% more Total DMG to ignited or bleeding enemies, so her SS bleed feeds her own damage.

Evasion: Fusion Roll

Two rolls in a row. Ultimate Evasion gives 40% Move Speed and an EM Charge (Ignore Interrupt for 5s, CD 15s, 11s with Rapid CD): her hits then trigger EM Blasts that deal Lightning DMG and Paralyze Trauma. Tap [ATK] during the Ultimate Evasion for an instant jump cleave.

Rotation: build SP with Perfect Combos and Spinning Blades, activate Nexus Unlock above 100 SP, then chain Tri-Strikes to spam light blades until SP runs out; use Ultimate Evasion for EM Charge whenever it is ready.

Strengths

Free and easy to farm: fragments from Expeditions, the Asterite Shop and other shops.
Long burst mode with piercing Lightning light blades that hit lines of enemies.
Lots of crowd control: Paralyze from her burst activation, EM Blasts and QTE.
Perfect Combos give her damage reduction and Ignore Interrupt.

Weaknesses

Obsolete: a Part 1 A-rank with no Astral Ring.
Burst mode needs over 100 SP and drains 10 SP per second.
Mixed Physical and Lightning damage makes her hard to build for.
Her QTE and burst Paralyze only unlock at S rank.

Notable dupes · Rank

Big upgrade

Unlocks her QTE, the burst activation blast (400% ATK of Lightning DMG and Paralyze), +40% Total DMG against ignited or bleeding enemies, and the leader skill upgrade.

Solid upgrade

Tri-Strike light blades inflict Bleed Trauma (feeding her S-rank bonus), and EM Charge lasts longer with a stronger EM Blast.

SSS

Optional

A Perfect Combo on Tri-Strike SEQ 3 can inflict 10 Paralyze Trauma (CD 8s).

Community

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Updated September 26, 2026 · Version 9.0

Sources & references