Starlight - Billy Build Guide: W-Engine, Drive Discs & Teams | Zenless Zone Zero

Starlight - Billy is the brand new S-Rank variant of Billy Kid in Zenless Zone Zero, known for his silly antics and flashy attacks in combat. Even though he presents a comedic character, he's an incredibly powerful fighter and a reliable teamate. His high-risk high-reward playstyle makes for an interesting change to those seeking for more engaging gameplay. In this blog, we take a closer look at Starlight - Billy’s playstyle, strengths, and best builds, along with tips on W-Engines, Drive Discs, and team synergy to help you get the most out of him.

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Starlight - Billy Agent Overview

  • Starlight - Billy Information

Agent Information
Starlight - BillyRarityS-Rank
AttributePhysical
SpecialtyRupture
FactionCunning Hares
Combat RoleDPS
  • Starlight - Billy Overview

Starlight - Billy is a S-Rank Physical Rupture Agent who functions as a main DPS in combat. With his new upgrades, he is able to deliver new, devastating attacks, as well as summon his motorcycle to aid him. Similar to many other Rupture characters, Starlight - Billy increases his Sheer Force according to his maximum HP, and any DMG from his attacks are considered Sheer DMG, ignoring enemies' Defense. Starlight - Billy has a unique resource, called Determination, which can be restored through hitting enemies. With enough Determination, Starlight - Billy can unleash a powerful attack with his motorcycle by holding down Basic Attack. Starlight - Billy's Special Attack consumes HP upon use, but it can block enemy attacks. To do this, simply time it right when an attack's about to land, making him perform a motorcycle block and return the favor with an uppercut counterattack. After performing the counterattack, Starlight - Billy can follow up with an EX Special Attack, dealing massive DMG and restoring his HP.

Starlight - Billy Overview

Starlight - Billy Skill Priority

Below are the best skill priorities for Starlight - Billy:

SkillPriority
Core Skill Core Skill★★★★★ (Top)
Basic Attack Basic Attack★★★★ (Top)
Chain Attack Chain Attack★★★ (High)
Special Attack Special Attack★★★★ (Top)
Dodge Dodge (Low)
Assist Assist★★(Low)

Starlight - Billy's Core Skill provides him with a tremendous 90% Crit DMG once maxed, making it highly prioritised when upgrading his skills. Basic Attack and Special Attack come next, with them being an integral part of Starlight - Billy's kit, providing amazing values with each upgrade. Sitting just below those two is Chain Attack; while it does massive DMG, it's infrequent use limits its priority. Last on this list are Dodge and Assist; with the way S-Billy is designed, he wants to parry enemy attacks with Special Attack more than evading them, which leaves the two skills rarely used.

Starlight - Billy Best W-Engines

As a Rupture character, Starlight - Billy wants as much HP, Crit Rate and Crit DMG as possible. Any Rupture W-Engine providing those stats will be able to work with him. His Signature W-Engine—Starlight Rider Faceplate is, unsurprisingly, his best option, providing additional Physical DMG and Crit Rate with activation conditions tied to his kit. We recommend you secure this W-Engine if you wish to maximise his potential.

Best choice

Starlight Rider Faceplate

Starlight Rider Faceplate

(S-Rank)

  • Base ATK: 713
  • Bonus Stat: HP 30%
  • W-Engine Effect (R5): CRIT Rate increases by 20%. When the equipper launches a Special Attack, their Physical Sheer DMG increases by 10%, stacking up to 2 times and lasting 30s. Repeated triggers reset the duration.
Alternatives

Wrathful Vajra

Wrathful Vajra

(S-Rank)

  • Base ATK: 713
  • Bonus Stat: HP 30%
  • W-Engine Effect (R1): CRIT Rate increases by 20%. When the equipper launches an EX Special Attack, their Fire Sheer DMG increases by 9%, stacking up to 2 times and lasting 20s. The duration of each stack is calculated separately.

Qingming Birdcage

Qingming Birdcage

(S-Rank)

  • Base ATK: 743
  • Bonus Stat: HP 30%
  • W-Engine Effect (R1): CRIT Rate increases by 20%. When the equipper launches an EX Special Attack, the character gains 1 stack of Qingming Companion effect, stacking up to 2 times and lasting 15s. On entering combat, immediately gain 2 stacks. Repeated triggers reset the duration. Each stack of the Qingming Companion effect increases the equipper's Ether DMG by 8%, and increases Ultimate and EX Special Attack Ether Sheer DMG by 10%.

Kraken's Cradle

Kraken's Cradle

(S-Rank)

  • Base ATK: 713
  • Bonus Stat: HP 30%
  • W-Engine Effect (R1): When the equipper's HP decreases, their Ice Sheer DMG increases by 6%, stacking up to 3 times and lasting 25s. The duration of each stack is calculated separately. This effect can trigger once every 0.5s. When the equipper's HP falls to 50% of Max HP or below, CRIT Rate increases by 20%.

Cauldron of Clarity

Cauldron of Clarity

(A-Rank)

  • Base ATK: 594
  • Bonus Stat: HP 25%
  • W-Engine Effect (R5): When the equipper activates an EX Special Attack, they gain 1 stack of a buff. Each stack increases the equipper's DMG by 6.4%, up to 3 stacks, and lasting 20s. This effect can trigger once every 0.5s, and repeated triggers reset the duration. At 3 stacks, the equipper's CRIT Rate increases by 10.4%.

Radiowave Journey

Radiowave Journey

(A-Rank)

  • Base ATK: 594
  • Bonus Stat: HP 25%
  • W-Engine Effect (R5): When launching a Chain Attack or Ultimate, the equipper gains 1 stack of a buff effect. Each stack increases the equipper's Sheer Force by 128, stacking up to 3 times, and lasting 12s. The duration of each stack is calculated separately.

Starlight - Billy Best Drive Disk Sets

Starlight - Billy works best with the 4-piece Yunkui Tales Drive Disk Set. For his 2-piece options, we recommend you choose from Woodpecker Electro, Branch & Blade Song and Fanged Metal depending on the stats he needs and the teams he's in.

Best choice

Yunkui Tales

Yunkui Tales

  • HP +10%. (2-piece)
  • When using EX Special AttackChain Attack, or Ultimate, CRIT Rate increases by 4%, stacking up to 3 times and lasting 15s. Repeated triggers reset the duration. When having 3 stacks of this effect, Sheer DMG increases by 10%. (4-piece)
2-piece choice

Woodpecker Electro

Woodpecker Electro

  • Increases CRIT Rate by 8%. (2-piece)

Branch & Blade Song

Branch & Blade Song

  • CRIT DMG +16%. (2-piece)

Fanged Metal

Fanged Metal

  • Increases Physical DMG by 10%. (2-piece)

Starlight - Billy Best Drive Disk Stats

Here are the best Drive Disc main stats and sub-stats for Starlight - Billy:

1.  Drive Disc Main Stats

Main StatsDrive Disk Slot
Crit Rate/Crit DMGSlot 4
Physical DMG%/HP%Slot 5
HP%Slot 6

2.  Drive Disc Sub Stats

Sub StatsPriority
HP%★★★ (High)
Crit Rate★★★ (High)
Crit DMG★★★ (High)
Flat HP★★ (Medium)
ATK%★★ (Medium)

Starlight - Billy Best Teams

Starlight - Billy's Additional Core Ability is activated when he's paired with a Stun, Support or Defense character, which makes him perfect for the hypercarry setup.

1. Starlight - Billy Premium Teams

For Stun characters, Dialyn and Ju Fufu synergize amazingly with Starlight - Billy, capable of applying consistent Daze and providing powerful buffs while requiring very little field time, allowing Starlight - Billy to stay on-field uninterrupted. Trigger is a pretty special case, as she doesn't have her Additional Core Ability activated in Rupture teams, but she's still strong enough to make it work nonetheless. As for Lucia, there's nothing much to explain why she's chosen, as she's the best Support in the game for Rupture characters.

DPSSupport

 Starlight - Billy

Starlight - Billy (S-Rank)

Dialyn

Dialyn (S-Rank)

Lucia

Lucia (S-Rank)

 Starlight - Billy

Starlight - Billy (S-Rank)

 Ju Fufu

Ju Fufu (A-Rank)

 Lucia

Lucia (S-Rank)

Starlight - Billy

Starlight - Billy (S-Rank)

Trigger

Trigger (S-Rank)

 Lucia

Lucia (S-Rank)

2. Starlight - Billy Free To Play Teams

Starlight - Billy unfortunately do not have many options for free to play teams. However, they're solid choices: Pan Yinhu is an amazing support for Rupture characters, and Pulchra and Koleda are currently the best free Stunners.

DPSSupport

Starlight - Billy

Starlight - Billy (S-Rank)

 Pulchra

Pan Yinhu (A-Rank)

 Pulchra

Pulchra (A-Rank)

Starlight - Billy

Starlight - Billy (S-Rank)

Pulchra

Pan Yinhu (A-Rank)

Koleda

Koleda (S-Rank)

Starlight - Billy Mindscape Cinema

M1: Heroic Entrance
  • Rating: ★★★ (Good)
  • Effect: Core Passive: Knight's Resolve restores an additional 60 Adrenaline upon entering the battlefield. Hitting an EX Special Attack causes Starlight - Billy's attack DMG to ignore 18% Physical RES for 45s. Repeated triggers refresh the duration.
  • This Mindscape provides Starlight - Billy with maximum Adrenaline upon entering battle. On top of that, it also gives him a solid 18% Physical RES shred.
M2: Wasteland Automaton
  • Rating: ★★★★★ (Best)
  • Effect: Increases the DMG dealt by Basic Attack: Full-Throttle StarlightEX Special Attack: Cool Wheelie, and Ultimate: Starlight Knight Flying Kick by 50%.
    Activating EX Special Attack: Rocking FootworkEX Special Attack: High-Traction Wheels, or hitting a Stunned enemy with Special Attack: Drive Suppression grants the Turbocharged effect: Special Attack: Drive Suppression consumes this effect to immediately follow up with EX Special Attack: Cool Wheelie, and increases that instance's CRIT DMG by 50%. Only 1 stack of Turbocharged can be held.
  • Starlight - Billy's Mindscape 2 is easily his best Mindscape. The increased skill DMG, combined with the additional Crit DMG make for the most significant increase in his DMG output.
M3: Knight's Chivalry
  • Rating: ★★ (Good)
  • Effect: Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. +2
  • Although this Mindscape only offers numerical skill level increases, it gives Starlight - Billy a considerable increase in his overall DMG.
M4: Flames of Justice
  • Rating: ★★ (Good)
  • Effect: While in combat, each use of Special Attack: Drive Suppression increases his CRIT DMG by 8%, stacking up to 2 times, and lasting 45s. Repeated triggers reset the duration. If HP is below 35% and Starlight - Billy is not the active character, he continuously recovers HP up to 35%.
  • This Mindscape doesn't matter much as its Crit DMG boost is minimal, and the HP recovery effect isn't too relevant if you're experienced at parrying and dodging.
M5: Radiant Armaments
  • Rating: ★★ (Good)
  • Effect: Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. +2
  • Identical to Starlight - Billy's Mindscape 3, only offering numerical skill level increases but is a pretty good upgrade in practice.
M6: Starlight Knight
  • Rating: ★★★★ (Great)
  • Effect: Ultimate: Starlight Knight Flying Kick and Basic Attack: Full-Throttle Starlight Sheer DMG increases by 18%. Landing the 4th hit of Basic Attack: Knight's TechniqueEX Special Attack: Cool Wheelie, or Chain Attack: Knight's Swagger grants 1 stack of Brilliant Starlight, stacking up to 6 times, and gaining at most 1 stack per skill use. When using Ultimate: Starlight Knight Flying Kick or Basic Attack: Full-Throttle Starlight, consumes up to 2 stacks, with each stack consumed causing that skill's final hit to deal 100% Sheer Force as additional Physical DMG.
  • This Mindscape offers a great increase in Starlight - Billy's overall DMG thanks to its additional effects. If you play properly, you'll almost always have all 6 stacks of Brilliant Starlight when using his Ultimate, translating to an extra 600% of Sheer Force in Physical DMG for the final strike.

Conclusion

All in all, Starlight - Billy is an amazing Rupture Agent in Zenless Zone Zero. With the right build and team setup, he can wipe out enemies with ease. We hope this Starlight - Billy guide can provide you with better knowledge of his strengths, as well as help you maximize his potential.

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