S MECH Physical

Dimension Breaker

Bronya Zaychik

TierC
RolesSupport · Sub DPS
Release1.8

Dimension Breaker is Bronya Zaychik's original S-rank MECH-type cannon battlesuit. Her switch-in (Dimension Pull) knocks enemies airborne and Time Locks them, her Ultimate sends out Project Bunny to taunt enemies, and her leader skill speeds up the team's SP recovery. Even HoYoverse's old guide described her as a Time Mastery support with a low deployment rate, not worth heavy investment. She has no Astral Ring and was superseded by Herrscher of Reason and Bronya's later battlesuits, so she is obsolete in 9.0.

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Dimension Breaker

Quick-switch Time Lock (old content)

Weapons

Hand of Tyr BiS
A
The pick of both HoYoverse's guide and the BBS: its instant 3-hit charged bombardment gives burst damage and Bleed right after Dimension Pull.
Charged cannon: the active fires an instant 3-hit charged bombardment with 5 Bleed Trauma, and Basic and charged shots deal 30% more Physical DMG to enemies with a broken Elite Shield.
Quantum Destroyer Type-II
A
HoYoverse's support pick: a laser (Perfect Cooling) whose black hole pulls enemies in; +35% Physical DMG against Time Slowed enemies. Craftable in the Foundry.
Rapid-fire cannon with +35% Physical DMG against Time Slowed enemies; the active opens a black hole that pulls enemies in, then leaves a 6s Slowing Field (-60% Move Speed, 188 Ice DMG every 0.6s).
Markov Type A
B
BBS transitional cannon.
Budget charged cannon: QTE attacks gain 25% Physical DMG and hits can inflict Ignite Trauma.

Stigmata

Schrodinger T Top
Planck M Middle
Isaac Newton B Bottom
Recommended by both HoYoverse's guide and the BBS for quick-switch damage: Isaac Newton (B) makes the Time Locked target take more damage.
Set effects
2pEach incoming hit has a 50% chance to deal 70% less damage; otherwise it deals 40% more.
3pAll buffs of this set's pieces gain a 10% higher trigger chance.
2pWeak hits (below 15 × the Valkyrie's level) no longer interrupt the wearer; on Bronya, ranged attacks get a 15% Total DMG Multiplier.
3pHitting an enemy heals 5% HP (CD: 5s); on Bronya, SP regen +30%.
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.
Critic T Top
Critic M Middle
Critic B Bottom
HoYoverse's elemental support set: the Jin Shengtan field gives allies +30% Elemental DMG and Ignore Interrupt protection.
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.
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

  • Swap in, weapon active, swap out: Dimension Pull does the crowd control
  • Practice Perfect Defense timing for a 5s Time Lock
  • SS rank: longer Project Bunny, standby SP regen and a stronger leader skill

Talent priority

Special ATK
Leader
Evasion
Ultimate
Basic ATK
Passive

HoYoverse's guide advised against heavy investment even when it was written; today only unlock her for collection or Part 1 content. Herrscher of Reason, Bronya's later S-rank, is also in the Dorm Supply.

Teams

Recommended teams

HoYoverse guide line-up

Dimension Breaker
Celestial Hymn
Snowy Sniper

The line-up from HoYoverse's official guide: Dimension Breaker Time Locks enemies on entry while Celestial Hymn and Snowy Sniper follow up. Part 1 content only.

Original trio (all-MECH)

Dimension Breaker
Valkyrie Ranger
Shadow Dash

With Kiana (Valkyrie Ranger) and Mei (Shadow Dash), all three are MECH-type: her leader skill gives +25% SP recovery and +20% Total DMG, and at SSS she gets +30% Crit DMG. A nostalgic budget team for older content only.

Guide

How to play

Core kit

  • Basic ATK (Charge: Particle Cannon): tap or hold to fire; the charging style depends on the cannon (charged cannon or laser). With lasers, Perfect Cooling (tap [ATK] as the overheat circle shrinks) resets the heat, boosts ATK Speed and briefly adds a 4s Time Slow on hit.
  • Switch entry (Dimension Pull): knocks the target and nearby enemies airborne and inflicts a 4s Time Lock (range and duration extended by Dimension Edge). Spacetime Cutter: hitting a Time Slowed enemy gives +80% Physical and Elemental DMG for 6s.
  • Ultimate (Project Bunny): 100 SP, a 10s burst mode (16s at SS) in which the invincible Project Bunny draws enemies to it and her attacks become lasers; it explodes at the end (Self Destruct).
  • Evasion (Dimension Reduction): she raises a shield instead of dodging. Release it just as an attack lands for a Counterstrike; a Perfect Defense knocks nearby enemies airborne, Time Locks them for 5s, inflicts Paralyze Trauma and gives +30% ATK Speed (CD: 15s).

Key mechanics

  • Her QTE (Complex Infinity) triggers on paralyzed enemies: Fire DMG, knock-up and Time Lock.
  • Leader skill (Metal Gear): team attack SP recovery +25% (+29% at SS), all-MECH teams deal 20% more Total DMG (26% at SS); at SSS she gains +30% Crit DMG when Kiana and Mei are in the team.

How HoYoverse used her

  • Quick-switch damage: swap in (Dimension Pull), immediately fire Hand of Tyr's active for burst damage and Time Lock, trigger Isaac Newton (B), then swap out.
  • Elemental support: Quantum Destroyer Type-II's black hole groups enemies while the Jin Shengtan set buffs the team's Elemental DMG.

Strengths

  • Strong crowd control: her switch-in and Perfect Defense both knock enemies airborne and Time Lock them.
  • Leader skill speeds up the whole team's SP recovery.
  • Project Bunny taunts enemies and is invincible.
  • Standard S-rank from the Dorm Supply, with cheap gear.

Weaknesses

  • Obsolete in 9.0: no Astral Ring, and HoYoverse already rated her deployment rate as low.
  • Superseded by Herrscher of Reason and Bronya's later battlesuits.
  • Low personal damage; the shield evasion takes practice.
  • Her best leader bonus (Fusion) needs SSS rank.

Notable dupes · Rank

SS
Solid upgrade

Project Bunny lasts 16s, she restores 2 SP every 5s on standby, rapid-fire weapons overheat 40% less, and her leader skill improves (+29% SP recovery, +26% Total DMG for all-MECH teams).

SSS
Optional

Fusion: +30% Crit DMG for herself when Kiana and Mei are in the team.

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Updated September 26, 2026 · Version 9.0
Sources & references
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