Last updated: April 26, 2025 9:25 PM

CHARACTER INFO

Billy Build Guide

B Tier

Level: 1

Core Bonus Included

ATK

DEF

Impact

CRIT Rate

CRIT DMG

50%

PEN Ratio

Anomaly Proficiency

Energy Regen

1.2

Anomaly Mastery

Though he is a handsome cyborg, he maintains a casual and carefree attitude. He is an ardent fan of the Starlight Knight show and often refers to himself as one of the Starlight Knights, reciting many classic lines from the series. He affectionately calls his pair of custom-made high-caliber revolvers “the girls,” which he received as a gift from an old friend. Despite his seemingly unreliable appearance, once Billy gets serious, he’s more than capable of taking on any challenge.

Billy Skill Priority

Full Firepower

Billy Basic Attack

Press to activate. Unleashes a piercing attack, dealing Physical DMG. Repeatedly press or hold to enter Crouching Shot to extend the attack duration. Move the joystick during Crouching Shot to launch Rolling Shot and adjust the character’s position, dealing Physical DMG. Stop pressing or holding during Crouching Shot to launch Finishing Shot at enemies in front, dealing Physical DMG.

Moveset - Standing Shot

Moveset - Crouching Shot

Moveset - Rolling Shot

Moveset - Finishing Shot

DMG Multiplier

Lv:

Risky Business

Billy Dodge

Press to dodge. A rapid dodge. Character is invulnerable while using this skill.

Moveset

Starlight Sanction

Billy Dash Attack

When moving during a dodge press: Launches a piercing attack at nearby enemies within a large area, dealing Physical DMG.
When not moving during a dodge press : Launches a piercing attack at enemies in a line, dealing Physical DMG.

Moveset - 360-degree Shot

Moveset - Straight Shot

DMG Multiplier

Lv:

Fair Fight

Billy Dodge Counter

Press during a Perfect Dodge to activate. Pierces enemies in front, dealing Physical DMG. Character is invulnerable while using this skill.

Moveset

DMG Multiplier

Lv:

Stand Still

Billy Special Attack

Press to activate. Performs up to 3 piercing attacks in a line, dealing physical damge. Anti-interupt level is increased while using this skill.

Moveset

DMG Multiplier

Lv:

Clearance Time

Billy EX Special Attack

When Billy has enough Energy, Press to activate. Powerful piercing attack in a straight line, dealing massive Physical DMG. Character is invulnerable while using this skill.

Moveset - Normal

DMG Multiplier & Cost

Lv:

Starlight Mirage

Billy Chain Attack

When a Chain Attack is triggered, select the character to activate. Unleashes a powerful piercing attack at surrounding enemies in a large area, dealing massive Physical DMG. Character is invulnerable while using this skill.

Moveset

DMG Multiplier

Lv:

Starlight Sparkle

Billy Ultimate

When Decibel Rating is at Maximum, press to activate. Unleashes a powerful strike at enemies in front in a large area, dealing massive Fire DMG. Character is invulnerable while using this skill.

Moveset

DMG Multiplier

Lv:

Steady Shot

Billy Core Passive

Billy’s DMG increases by 25%/29.1%/33.3%/37.5%/41.6%/45.8%/50% when he enters Crouching Shot during his Basic Attack. The effect ends if he moves, returns to standby, or is knocked back or launched by an attack.

Team Starlight

Billy Additional Ability

When another character in your squad shares the same Attribute or Faction: After Billy uses a Chain Attack, the DMG of his next Ultimate is increased by 50%, stacking up to 2 times. This effect resets whenever an Ultimate is activated.

Power of Teamwork

Billy Quick Assist

When the on-field character is launched, press to activate. Launches a piercing attack at enemies in front, dealing Physical DMG. Character is invulnerable during the attack.

Moveset

DMG Multiplier

Lv:

Flash Spin

Billy Evasive Assist

When the character on field is about to be attacked, press to activate:

Dodges the enemy’s attack and activates Vital View.

Character is invulnerable while using this skill.

Moveset

Fatal Shot

Billy Assist Follow-Up

Press after an Evasive Assist to activate. Pierces enemies in a large area in front, dealing Physical DMG. Character is invulnerable while using this skill.

Moveset

DMG Multiplier

Lv:

Billy Mindscapes Explanation

TBC

Billy Mindscape 1

Billy Mindscape 2

Billy Mindscape 3

Billy Mindscape 4

Billy Mindscape 5

Billy Mindscape 6

Billy Best W-Engine

Starlight Engine Replica

100%

Billy Best W-Engine Explanation

Billy’s Optimal W-Engine and Early Game Gear

Best Performing W-Engine: A Rank Starlight Engine Replica
- Advantages: Ideal for Billy’s high mobility and ranged attacks.
- Effect: Boosts damage from Basic Attacks, Dash, and Dodge, easily triggered by Billy’s playstyle.
Second Choice: S Rank Steel Cushion
- Advantages: Increases Physical DMG by 20%. The equipper’s DMG increases by 25% when hitting the enemy from behind.
- Usage: Billy’s mobility allows frequent positioning for back attacks, maximizing the 45% damage increase. Also enhances Crit Rate.
Alternative W-Engine: Cannon Rotor
- Advantages: Increases ATK by 12%. Landing a critical hit on an enemy will inflict an additional 200% of ATK as DMG. This effect can trigger once every 6s.
- Recommendation: Equip with gear focusing on Crit Rate to ensure consistent activation on-field.
Early Game Stage Gear: [Lunar] Pleniluna
- Benefits: B Rank weapons boosting ATK.
- Effects: Enhances Basic Attack, Dash Attack, and Dodge Counter damage, suitable as transitional options for Billy.

Billy Best Disk Drives and Stats Priority

Option 1 - General DPS Build

Woodpecker Electro

4 pcs

Fanged Metal

2 pcs

Main Stats - Specific slots

Slot IV

Crit Rate/Crit DMG

Slot V

Physical DMG

Slot VI

ATK%

Sub Stats - All slots

Crit Rate = Crit DMG > ATK% > PEN > ATK

Billy Best Disk Drives Explanation

Billy’s Disk Drives Recommendations

Recommended Disk Drives:
- Equip Billy with 4 pcs Woodpecker Electro and 2 pcs Fanged Metal.
- 2 pcs Bonus: Increases Crit Rate.
- 4 pcs Bonus: Landing a critical hit on an enemy with a Basic Attack, Dodge Counter, or EX Special Attack increases the equipper’s ATK by 9% for 6s. The buff duration for different skills are calculated separately.
Main Stats Recommendations:
- Slot 4: Crit Rate or Crit DMG.
- Slot 5: Physical DMG Bonus.
- Slot 6: Energy Regen or ATK%, enhancing Ex Special damage or its frequency.
Sub-stats Priority:
- Prioritize Crit Rate and Crit DMG.
- Follow with ATK% and PEN to optimize Billy’s performance on the field.

Billy Best Team – Premium Team

Billy Build

Attack

Nicole Build

Support

Zhu Yuan Build

Burst

Devilboo

Amillion

Bangboo

Billy Premium Team Explanation

Billy’s Role and Team Composition:

Role and Characteristics:

Billy functions as the secondary DPS within the team setup.
His damage output primarily stems from his long-ranged Basic Attacks and high mobility.
Billy’s survivability is enhanced by his ability to maintain a presence on the field through frequent attacks and mobility.

Synergy with Nicole and Zhu Yuan:

Nicole’s energy field reduces enemy DEF by 40% and boosts Ether DMG for the team by 25%.
This synergizes well with Zhu Yuan’s burst-oriented playstyle, known for short but intense bursts of damage.
Billy acts as a consistent damage source between Zhu Yuan’s burst cycles.

Bangboo Selection:

The optimal Bangboo choice for the team is the A Rank Devilboo.

Billy Best Team – Physical Team

Billy Build

Attack

Corin Build

Burst

Nekomata Build

Support

Butler

Sumoboo

Bangboo

Billy Physical Team Explanation

Physical Anomaly Team Composition

Replacement for Lycaon:

Billy

Bangboo Choices:

S Rank:
- First Choice: Butler
- Second Choice: Starterboo
A Rank: Sumoboo

Team Dynamics

Team Passives Activation:
- Billy and Nekomata: Same faction.
- Corin: Shares the same attribute with both Billy and Nekomata.

Roles and Equipment Adjustments

Billy:

Acts as the on-field character, focusing on Physical Anomaly.
Equipment attributes should emphasize Anomaly Proficiency and Anomaly Mastery to increase the buildup speed of Physical Anomalies.

Nekomata:

Role remains as support and burst damage dealer.
Equipment adjustment:
- New Setup: 4-piece Fanged Metal and 2-piece Woodpecker.
- This setup balances higher small bursts with enhanced Physical Anomaly capability.

Corin:

Role remains as the primary burst damage dealer during the Daze period.

Strategy

Billy’s Playstyle:
- Somewhat unconventional in this setup, requiring focus on Physical Anomaly.
- If a better Physical Anomaly character becomes available in the future, consider replacing Billy immediately due to his lower anomaly efficiency.

This composition ensures all team passives are fully activated and adjusts the equipment to optimize the roles and synergies within the Physical team.

Rank 1
Req Lv

Rank 2
Req Lv

Rank 3
Req Lv

Rank 4
Req Lv

Rank 5
Req Lv

Billy Build Guide

Billy Overview

Billy Skills

Billy Skill Priority

Billy Dodge Skills

Billy Special Skills

Billy Chain Skills

Billy Core Skills

Billy Mindscape

Billy Mindscapes Explanation

Billy Build

Billy Best W-Engine

100%

Billy Best W-Engine Explanation

Billy’s Optimal W-Engine and Early Game Gear

Billy Best Disk Drives and Stats Priority

Option 1 - General DPS Build

4 pcs

2 pcs

Main Stats - Specific slots

Sub Stats - All slots

Billy Best Disk Drives Explanation

Billy’s Disk Drives Recommendations

Billy Team

Billy Best Team – Premium Team

Attack

Support

Burst

Bangboo

Billy Premium Team Explanation

Billy Best Team – Physical Team

Attack

Burst

Support

Bangboo

Billy Physical Team Explanation

Physical Anomaly Team Composition

Team Dynamics

Roles and Equipment Adjustments

Strategy

Billy Ascension Material