PSY

Physical

Yamabuki Armor

Bronya Zaychik

TierC

RolesSupport · Debuffer

Release1.8

Yamabuki Armor is Bronya Zaychik's A-rank PSY-type cannon battlesuit, a Physical support who gives the whole team a mech shield, lowers enemy DEF with uncharged shots and triggers Time Fracture with a Perfect Defense. Marisa Impact notes she was used a lot in the old Memorial Arena for that Time Fracture, but HoYoverse's own guide already called her unimpressive before her augment core, Drive Kometa. With no Astral Ring she is obsolete in 9.0: her real value today is ranking her up to unlock and rank up Drive Kometa.

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Melee Physical support (old content)

Weapons

Star Shatterer: Vikrant BiS

HoYoverse's support pick (also in the BBS list): a gravity field that groups and weakens enemies, and the team deals 15% more Total DMG to weakened enemies.

Rapid-fire cannon: the active creates a 7s gravity field that slows enemies by 50%, deals 150% ATK of Physical DMG per second, drags them to its centre and weakens them (ATK -10%); the team deals 15% more Total DMG to weakened enemies, and the wielder gains 15% max HP.

Briareus EX

BBS recommendation: a time-slow field that shreds DEF, with stacking Crit Rate.

Old PRI-ARM cannon with a time-slow, DEF-shredding field, stacking Crit Rate and a type-based bonus (+25% Elemental DMG on QUA and IMG wielders).

Alloy Lurker

HoYoverse's beginner pick, from Expeditions.

Basic charged cannon from Expeditions: the active smashes the ground with mechanical arms, hitting several times and knocking enemies back.

Stigmata

Tesla Band T Top

Beethoven M Middle

Beethoven B Bottom

Support set from both HoYoverse's guide and the BBS: Tesla Band (T) and Beethoven (M) buff teammates from off the field, Beethoven (B) restores SP on entry, and Beethoven's 2-piece gives the next teammate +40% melee Physical DMG after her Ultimate.

Set effects

2pAnti-Entropy Band set. Every 4 Basic, Combo or Charged ATK hits (1 stack per second max) unleash a Chain Lightning that jumps across 4 targets, dealing 600% ATK of Lightning DMG to the first one and 3 Paralyze Trauma (CD: 15s).

3pMax HP +20% and Lightning DMG +40% in battle; the Chain Lightning no longer loses damage as it jumps.

2pKlassik Komponist set. After the wearer's Ultimate, the next teammate switching in gains 40% melee Physical DMG for 10s (CD: 20s).

3pThat teammate also takes 30% less Total DMG for 10s and restores HP equal to 20% of the wearer's max HP (CD: 20s).

Gustav Klimt T Top

Gustav Klimt M Middle

Isaac Newton B Bottom

BBS alternative with Briareus EX: Gustav Klimt's curse (+10% Physical DMG taken) and team Physical DMG buff after the weapon active.

Set effects

2pAccursed Shadows set. The weapon active (CD: 16s) puts an 8s Hematic Curse on enemies within 6m: they take 10% more Physical DMG (the M piece also gives the team +20% Physical DMG for 8s after a weapon active).

3pThe wearer takes 50% less Indirect DMG, and Hematic Curse lasts 2s longer.

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.

Lost Nun T Top

Lost Nun M Middle

Lost Nun B Bottom

Beginner set from both sources (3★ Theresa: Origins): +15% Physical DMG on the team's Basic ATKs.

Set effects

2pTheresa: Origins set (3★, from Everlasting Memory). Allies take 20% less DMG from frontal attacks; on Theresa, +20% max SP.

3pAllies' Basic, Combo and Charged ATKs deal 15% more Physical DMG (does not stack).

Stat targets

Impair with uncharged shots before swapping out
Practice Perfect Defense for her 5s Time Fracture
Raise her rank to unlock Drive Kometa's ranks (S for ranks 2-3, SS for 4-5, SSS for 6)

Talent priority

Passive

Evasion

Basic ATK

Special ATK

Leader

Ultimate

HoYoverse's guide advised unlocking her augment core before investing. Drive Kometa is unlocked with Kometa Cores (Asterite Shop, Expedition, Adventure Tasks per Marisa Impact) and each augment rank needs Yamabuki Armor at a minimum rank and level (Fandom).

Teams

Recommended teams

HoYoverse guide line-up

Yamabuki Armor

Celestial Hymn

Night Squire

The line-up from HoYoverse's official guide: Yamabuki Armor shields and buffs melee Physical teammates such as Night Squire, with Celestial Hymn. Part 1 content only.

All-PSY Physical trio

Yamabuki Armor

Divine Prayer

Valkyrie Accipiter

With three PSY-type battlesuits, her leader skill gives everyone +20% Crit Rate and +20% Crit DMG above 30 combo hits. A budget option for older content only.

Guide

How to play

Core kit

Basic ATK (Charge: Particle Cannon): charged cannon fire whose charging style depends on the cannon. Mech Phobia: an uncharged shot impairs the target and nearby enemies (-30% DEF for 10s).
Switch entry (Shield Charge): a charge that knocks enemies airborne and deals bonus Physical DMG (Power Charge).
Ultimate (Overdrive Mode): above 40 SP, spend 10 SP to enter a burst mode that drains 10 SP/s and gives Iron Body; it Time Locks impaired enemies for 10s (Terror Freeze) and heals the team for impaired enemies hit by her fists. Tap [ULT] to end it.
Evasion (Dimension Field): she raises a shield against frontal attacks; release it as the attack lands for a Counterstrike. A Perfect Defense triggers a 5s Time Fracture and gives her +50% Move Speed and +30% ATK Speed for 3s (CD: 15s). Reflective Shield also counters ranged attacks.

Key mechanics

Mecha Barrier: every teammate carries a mech shield that absorbs Physical DMG and refills after 6s without being hit; from S rank it inherits 100% of her DEF, and it zaps enemies with Lightning DMG when it breaks.
Her QTE (Honkai Barrier) triggers on Time Slowed enemies: a Super Shield Charge with Stun Trauma.
Leader skill (Mental Sync): above 30 combo hits the team gains +20% Crit Rate, and PSY-type battlesuits gain +20% Crit DMG.

How to use her

Swap in (Shield Charge), fire a few uncharged shots to impair enemies, land a Perfect Defense for Time Fracture, then swap to your DPS.
With Beethoven equipped, casting her Ultimate before swapping out gives the next teammate +40% melee Physical DMG.

Strengths

Team-wide mech shield, DEF shred (-30%) and Time Fracture on Perfect Defense.
Leader skill gives Crit Rate to everyone and Crit DMG to PSY-type battlesuits.
Her ranks unlock the ranks of her augment core, Drive Kometa.
Very easy to get: Open World, Expedition, Dorm Supply, Dorm Shop and Elysian Shop (Marisa Impact).

Weaknesses

Obsolete in 9.0: no Astral Ring, and even HoYoverse's old guide called her unimpressive outside her augment form.
Weak shield and small DEF reduction by today's standards.
Perfect Defense timing is needed for her Time Fracture.
Superseded by her own augment core, Drive Kometa (also outdated).

Notable dupes · Rank

Big upgrade

Reinforced Barrier (the team's mech shield gets 100% of her DEF) and Energy Overload (+50% charge speed, -50% Crit Rate); S rank is also required for Drive Kometa's augment ranks 2 and 3.

Solid upgrade

Field Propulsion: every Counterstrike restores 4 SP to the whole team; SS rank is required for Drive Kometa's augment ranks 4 and 5.

SSS

Solid upgrade

Mending Link (Overdrive heals the team on each kill); SSS rank is required for Drive Kometa's final augment rank.

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Updated September 26, 2026 · Version 9.0

Sources & references