Starlight Billy Build Guide: Best ZZZ 2.8

Master the best Starlight Billy build in ZZZ 2.8 — top W-Engines, Drive Discs, and team comps for this Physical Rupture DPS. Phase 2 ready.

⭐ Who Is Starlight Billy — and Why the Hype?

Starlight Billy is the S-Rank evolution of Billy Kid — the free A-Rank gunslinger every player gets at the start of Zenless Zone Zero. He drops in Version 2.8 Phase 2 on May 27, 2026, and he's turning heads for one reason above all else: he is the first Agent in ZZZ built entirely around a system that converts his own HP directly into damage. The more Max HP he has, the harder he hits — and his built-in Cheat Death passive means he can push that HP threshold aggressively without dying for it. If you've been waiting for a high-risk, high-reward Physical hypercarry, Starlight Billy is it.

His banner, Starlight, Shine Bright, runs alongside A-Rank Agents Pan Yinhu and Manato as featured pulls, and runs until June 16, 2026.

⚙️ Understanding Starlight Billy's Core Kit

Before touching W-Engines or Drive Discs, the best Starlight Billy build in ZZZ requires understanding the two systems that define his entire damage output.

The first is HP-to-Damage Conversion. Every point of Max HP on Starlight Billy generates 0.1 Sheer Force — his unique combat stat. This Sheer Force then becomes the base multiplier for all of his Sheer DMG, which is a form of True Damage that completely bypasses enemy DEF. Unlike conventional Physical DMG that enemies can resist through DEF reduction, Sheer DMG hits the full number every time. This makes HP stacking the single most important investment in his build, above ATK and even above CRIT in terms of priority.

The second is Bike Mode. Activated through his Special Attack, Bike Mode continuously drains Billy's HP in exchange for +30% CRIT DMG, 12% DMG reduction, and Anti-Interrupt. While in Bike Mode, dealing damage fills a Heat meter. Once Heat reaches 100, his EX Special Attack upgrades to the Starlight Knight nuke — his highest single-target burst in the entire kit. The HP drain sounds risky but pairs naturally with his built-in Cheat Death: taking fatal damage negates the kill, grants a shield equal to 180% of his Max HP, and resets on a 100-second cooldown. This lets him operate at low HP thresholds that would be instantly fatal on any other Agent.

🗡️ Best W-Engines for Starlight Billy

Starlight Billy's signature W-Engine is his best-in-slot option and is worth budgeting for if you plan to build him as your primary DPS. It directly increases CRIT consistency while amplifying the Rupture and Sheer damage that defines his entire scaling profile. Crucially, it doesn't require awkward activation conditions — the passive stays active during his natural combat rotation without forcing you to play differently to maintain it.

For players skipping the signature banner, The Brimstone is the strongest standard alternative. It stacks ATK by up to a significant percentage whenever Billy uses a Basic ATK, Dodge Counter, or Dash Attack — all actions that make up the majority of his rotation outside of Bike Mode. The stacks build and maintain naturally without active management. Starlight Engine Replica is the best A-Rank option, granting +36% Physical DMG whenever Billy maintains a distance of 6 meters or more from enemies — straightforward to maintain since he's a ranged fighter by default.

🔮 Best Drive Disc Sets

Yunkui Tales is Starlight Billy's best-in-slot 4-piece set and it's not a close call. The 2-piece provides Max HP +10%, which directly increases his Sheer Force scaling. The 4-piece triggers CRIT Rate stacks after any EX Special Attack, Chain Attack, or Ultimate — exactly the skills Billy uses most frequently during his rotation. At 3 stacks, Physical Sheer DMG increases by 10%, providing a consistent damage amplification that compounds with his Bike Mode and Heat cycle.

For the remaining 2-piece slot, choose based on what stats your Drive Discs are lacking. Woodpecker Electro adds CRIT Rate for more consistent crits if your main pieces are rolling CRIT DMG-heavy. Branch and Blade Song adds Physical DMG Bonus for raw damage output. Fanged Metal adds PEN Ratio which bypasses remaining enemy resistance — most useful in endgame content like Shiyu Defense where enemies have Physical resistance.

📊 Stat Priorities and Main Stats

HP is Billy's primary scaling stat and should be treated as such — more HP means more Sheer Force means more Sheer DMG. This shifts his build priorities significantly compared to conventional Physical DPS Agents. Drive Disc main stats: Suit — HP%, Gloves — CRIT Rate or CRIT DMG (depending on your secondary pieces), Boots — HP% or ATK%, Disc 4 — Physical DMG Bonus, Disc 5 — HP%, Disc 6 — HP% or CRIT DMG.

For substats, prioritize in this order: HP% first, then CRIT Rate to a comfortable 70-75% threshold (remember Yunkui Tales stacks also add CRIT Rate), then CRIT DMG, then ATK%. Avoid investing heavily into PEN Ratio unless you have the Fanged Metal 2-piece, as his Sheer DMG already bypasses DEF entirely.

👥 Best Team Compositions

Starlight Billy's strongest team is Billy + Lucia + Dialyn. Lucia is his essential partner — she provides sustained healing through her kit which directly counteracts the HP drain from Bike Mode, and her buffs increase his effective HP pool. Without reliable healing, Billy's Cheat Death passive becomes a crutch rather than a tool, and his rotation breaks down. Dialyn brings Stun utility and can trigger extra Ultimates for the team, creating additional Starlight Knight nuke windows that represent Billy's highest single-hit damage moments.

For a free-to-play friendly team, Billy + Pulchra + Pan Yinhu is the recommended option. Pulchra builds Daze quickly to create frequent Stun windows where Billy can land his heaviest hits. Pan Yinhu provides the Sheer Force buff that directly amplifies Billy's core damage stat, alongside healing to keep his HP above critical thresholds. This composition sacrifices some raw ceiling but is accessible to every player from day one.

📋 Skill Priority

Level Core Skill first — it directly impacts Billy's Sheer Force and fundamental damage output. Basic Attack comes second, as it forms the backbone of his rotation outside of Bike Mode and feeds into Yunkui Tales stack generation. EX Special Attack is third, since the Starlight Knight upgrade at 100 Heat is his signature nuke. Chain Attack and Ultimate can be leveled last as they provide good damage but are not the priority drivers of his kit.

📈 Mindscape Cinema — How Deep Should You Go?

M0 is Starlight Billy's fully functional baseline. His HP-to-Damage loop, Bike Mode, Sheer DMG output, and Cheat Death all work completely at M0 — he is not a character who feels incomplete without Mindscape investment. Pull for M0 first and evaluate from there.

M2 is the recommended stopping point for players who want meaningful improvement. It increases his Sheer Force scaling and boosts the damage ceiling of the Starlight Knight nuke significantly — the largest power spike in his Mindscape progression. M4 and M6 are for dedicated fans of the character rather than efficiency-focused players.

⛏️ Pre-Farm Materials

You can start preparing for Starlight Billy now before Phase 2 launches on May 27. His ascension materials are farmed from the 2.8 content added in the current patch, and his Mindscape Cinema upgrade material drops from the new weekly boss introduced in Version 2.8. The sooner you start clearing that weekly boss, the more prepared you'll be at launch.

🛒 Ready to Roll with Starlight Billy?

Starlight Billy is a serious long-term investment, and building him correctly from day one makes all the difference between struggling and dominating. Proxies ready to go all-in can explore trusted Zenless Zone Zero Accounts to start with a strong foundation, fine-tune every Drive Disc and rotation with expert Zenless Zone Zero Hourly Services, or clear the most demanding content effortlessly through reliable Zenless Zone Zero Boosting.

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