GachaBuilds
Billy
Zenless Zone Zero

Billy build

Equipment options · Main stats · Team examples

Your build plan

For Billy, compare The Brimstone while keeping the recommended CRIT Rate% = CRIT DMG% · PEN Ratio >= ATK % > Physical DMG % · ATK% setup fixed. A weapon or set change is easier to judge when you do not also change the team and skill timing.

Equipment options

13 options

Start with equipment you can actually obtain. These are alternative recommendations, not pieces to equip together. Refinement, set size and team restrictions change the result.

W-Engines

The Brimstone
The Brimstone(S 5 )
Cloudcleave Radiance
Cloudcleave Radiance(S 1 )
Heartstring Nocturne
Heartstring Nocturne(S 1 )
The Brimstone
The Brimstone(S 1 )
+6 options
Steel Cushion
Steel Cushion(S 1 )
Starlight Engine Replica
Starlight Engine Replica(S 5 )
Starlight Engine
Starlight Engine(S 5 )
Street Superstar
Street Superstar(S 5 )
Cannon Rotor
Cannon Rotor(S 5 )
Gilded Blossom
Gilded Blossom(S 5 )

Drive Disc sets

Woodpecker Electro
Woodpecker Electro( 4 -PC)
Shadow Harmony
Shadow Harmony( 4 -PC)
Puffer Electro
Puffer Electro( 4 -PC)

Main stats

Use the slot recommendations to make your first functional setup. When several stats are listed, choose the one that fills the gap in your current team rather than mixing every option.

Disk 4CRIT Rate% = CRIT DMG%
Disk 5PEN Ratio >= ATK % > Physical DMG %
Disk 6ATK%
Substats

CRIT RATE = CRIT DMG > ATK% > PEN = ATK

Skill priority

Follow the skill order below for your next upgrade. Compare one rank at a time, and keep the same team and enemy so equipment changes do not hide the result.

Chain Attack > Special Attack > Dodge > Basic Attack > Assist

Abilities

Check ability names and unlock information against your current game form. Level, upgrades and variants can change skills.

Core Passive Steady Shot

Core Passive Steady Shot

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Lv. 1

ParameterValueCondition markers
Parameter25%when · DMG · Basic Attack
Additional Ability Team Starlight

Additional Ability Team Starlight

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter50%up to · after · DMG · Chain Attack
times2up to · after · DMG · Chain Attack
Basic Attack: Full Firepower

Basic Attack: Full Firepower

Dodge: Risky Business

Dodge: Risky Business

Dash Attack: Starlight Sanction

Dash Attack: Starlight Sanction

Dodge Counter: Fair Fight

Dodge Counter: Fair Fight

Special Attack: Stand Still

Special Attack: Stand Still

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter3per · up to · Physical DMG · DMG
EX Special Attack: Clearance Time

EX Special Attack: Clearance Time

Chain Attack: Starlight Mirage

Chain Attack: Starlight Mirage

Ultimate: Starlight Sparkle

Ultimate: Starlight Sparkle

Assist Follow-Up: Fatal Shot

Assist Follow-Up: Fatal Shot

Evasive Assist: Flash Spin

Evasive Assist: Flash Spin

Quick Assist: Power of Teamwork

Quick Assist: Power of Teamwork

Dazzling Entrance

Ability type / unlock: Mindscape 1

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Energy2.7when · Energy

Roaming Gunslinger

Ability type / unlock: Mindscape 2

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter25%DMG

Teachings of the Starlight Knights

Ability type / unlock: Mindscape 3

Starlight Ballistics

Ability type / unlock: Mindscape 4

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter32%maximum · up to

Lost Technological Construct

Ability type / unlock: Mindscape 5

Starlight Hero

Ability type / unlock: Mindscape 6

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
hits10when · per · up to · DMG
Parameter6%when · per · up to · DMG
times5per · up to · DMG

Displayed stats

Billy Stats at level 60 (including Core passive bonuses).

HP 6907
DEF 606
ATK 787
CRIT Rate 19.4 %
CRIT DMG 50 %
PEN Ratio 0 %
Impact 91
Anomaly Mastery 92
Anomaly Proficiency 91
Energy Regen 1.2
GACHABUILDS

Test your setup

Balance critical rate with critical damage. A large damage number is less useful when critical hits are inconsistent; evaluate the complete setup rather than a single item.

Choose one option, run the same encounter twice, and change one variable. Record whether the next rotation starts on time and whether the team survives without losing its damage window.

Checked · 2026-10-13 · Patch 2.8

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