S BIO Physical

Knight Moonbeam

Kiana Kaslana

TierC
RolesDPS · Support
Release1.8

Knight Moonbeam is Kiana Kaslana's original S-rank BIO-type pistol battlesuit: a mid-range Physical DPS who triggers Time Fracture with any evasion and deals +150% Physical and Elemental DMG to stunned or paralyzed enemies. HoYoverse's old guide made her a core member of Physical Memorial Arena teams, both as a DPS and as a Time Fracture support. She has no Astral Ring and has been superseded by Herrscher of the Void and Kiana's later battlesuits, so she is obsolete in 9.0.

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Knight Moonbeam

Physical DPS / Time Fracture support (old content)

Weapons

Positron Blasters BiS
S
Her PRI-ARM, picked by both HoYoverse's guide and the BBS for DPS and support: a free paralyzing beam that gives 20% Physical Vulnerability, chains into Gunstorm and restores SP on her.
PRI-ARM of Hyper Railguns: a free, twice-chargeable beam (600% ATK of Physical DMG per hit, 9 Paralyze Trauma), Chain Lightning every 20 hits and +50% Crit DMG on Combo ATKs; on Knight Moonbeam the beam gives 20% Physical Vulnerability, chains into her Combo ATK and restores SP.
Hyper Railguns
A
Her original signature pistols (large paralyzing Lightning blast); forge them into Positron Blasters as soon as you can.
Knight Moonbeam's original pistols: a large-area Lightning blast with 10 Paralyze Trauma, and hits have a small chance to add Paralyze Trauma.
Judgment of Shamash
A
BBS transitional pick if you own this Divine Key.
Older Fire Divine Key: its active smites enemies, slows them and makes them take up to 15% more Total DMG, with bonus damage against ignited enemies.

Stigmata

Dante T Top
Dante M Middle
Queen of Egypt B Bottom
DPS set from both HoYoverse's guide and the BBS: Dante (T/M) for Physical DMG, Crit Rate and Crit DMG, and Cleopatra (B) for a big Total DMG bonus against paralyzed enemies.
Set effects
2pCrit DMG +20% and +30% Physical DMG for 10s on entering burst mode or landing burst Charged ATKs; on Durandal, Ultimate Evasion and Retaliation CD -20%.
3pIn burst mode, +30% DMG against shields and Charged ATKs impair enemies (-40% DEF, -60% on Durandal).
2pCleopatra set. +25% Move Speed; on Kiana or Kallen, +20% max HP in battle (B piece: attacks against paralyzed enemies deal up to 82% more Total DMG).
3pRanged attacks gain 5% Physical DMG per meter of distance to the target (up to 10 stacks).
Gustav Klimt T Top
Gustav Klimt M Middle
Isaac Newton B Bottom
Support set from both sources: Positron Blasters' free active triggers Gustav Klimt's curse (+10% Physical DMG taken) and team Physical DMG buff; HoYoverse paired this with Celestial Hymn in the Memorial Arena.
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.

Stat targets

  • Keep enemies paralyzed for Shock Resonance (+150% DMG)
  • Fire Gungnir Execution with a full SP bar (Energy Burst)
  • SS rank first: Aftermath, Nebula Core and a stronger leader skill

Talent priority

Special ATK
Passive
Ultimate
Evasion
Basic ATK
Leader

Superseded: invest in Herrscher of the Void or a current Kiana battlesuit first. Knight Moonbeam and Herrscher of the Void are both in the Dorm Supply pool.

Teams

Recommended teams

HoYoverse guide Physical line-up

Knight Moonbeam
Celestial Hymn
Stygian Nymph

The line-up from HoYoverse's official guide: Knight Moonbeam provides Time Fracture and Physical Vulnerability, Celestial Hymn supports, and Stygian Nymph deals damage. Part 1 content only.

All-BIO Physical trio

Knight Moonbeam
Black Nucleus
Celestial Hymn

Three BIO-type battlesuits unlock her full leader skill (+30% Crit DMG and +20% Total DMG for the team). A budget option for older content, not for current endgame.

Guide

How to play

Core kit

  • Basic ATK (Gyrodrive Kata): 4 shots; the 4th is a close-range scatter shot that restores a little SP. Comet Flechette turns the first 3 shots into scatter shots too.
  • Combo ATK (Gunstorm): after 3 shots, hold [ATK] for a spinning gun kata; mash [ATK] during it for up to 6 more Combo ATKs.
  • Ultimate (Gungnir Execution): 100 SP, she summons the Valkyrie heavy cannon (up to 2,500% ATK of Physical DMG). Energy Burst makes the last hit consume all remaining SP for extra damage, so fire it with a full SP bar.
  • Evasion (Time Fracture): a 3s Ultimate Evasion triggers Time Fracture (CD: 20s); Temporal Boom lets any evasion trigger a 3s Time Fracture and extends the Ultimate Evasion one by 3s.

Key mechanics

  • Shock Resonance: +150% Physical and Elemental DMG against stunned or paralyzed enemies. Her PRI-ARM Positron Blasters paralyzes, and Cleopatra (B) adds Total DMG against paralyzed enemies.
  • Drizzle of Light: up to +15% Crit Rate at 20/50/100 combo hits.
  • Switch entry (Nova Cyclone) unleashes a Gunstorm flurry; her QTE (S.W.O.L.) triggers on airborne enemies.
  • Leader skill (Nebula Spectra): team +30% Crit DMG (+40% at SS), and an all-BIO team deals 20% more Total DMG (26% at SS).

Rotation (old content)

  1. Weapon active (Positronic Beam, charge it twice), then tap [ATK] right away to go straight into Gunstorm.
  2. Evade often to keep Time Fracture up, and mash Gunstorm on paralyzed enemies.
  3. Fire Gungnir Execution with as much SP as possible for Energy Burst.

Strengths

  • Easy Time Fracture: any evasion triggers it, and from SS rank her Ultimate ends with a 5s Time Fracture.
  • +150% Physical and Elemental DMG against stunned or paralyzed enemies, which her PRI-ARM provides.
  • Team-wide Crit DMG leader skill (+30%, +40% at SS).
  • Standard S-rank from the Dorm Supply; her PRI-ARM is forged in the Foundry.

Weaknesses

  • Obsolete in 9.0: no Astral Ring, so she has no place in current Memorial Arena or Superstring Abyss teams.
  • Superseded by Herrscher of the Void and Kiana's later battlesuits.
  • Her damage bonus relies on paralyzed or stunned enemies, which many bosses resist.
  • Most of her value (Aftermath, Nebula Core, stronger leader skill) needs SS rank.

Notable dupes · Rank

SS
Big upgrade

Aftermath (a 5s Time Fracture at the end of her Ultimate), Nebula Core (+5% Physical DMG per Time Slowed enemy, up to 10 stacks) and a stronger leader skill (+40% Crit DMG, +26% Total DMG for all-BIO teams).

SSS
Optional

Time Bender: the Ultimate Evasion effect can trigger one more time, and its CD is 2s shorter.

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Updated September 26, 2026 · Version 9.0
Sources & references
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