Piper Build: Best Drive Discs & Stats (ZZZ)

Piper is an A-rank Anomaly agent in Zenless Zone Zero. This Piper Drive Disc build lists the sets, main stats and substats to aim for, and the Area Patrol stage that drops them, as of version 3.2.

4-piece: Fanged Metal
2-piece: Anomaly Mastery +8%, PEN Ratio +8%, Anomaly Proficiency +30 or ATK +10%
Disk 4: Anomaly Proficiency
Disk 5: PEN Ratio or ATK% or Physical DMG%
Disk 6: Anomaly Mastery
Substats: Anomaly Proficiency > ATK% > PEN
W-Engine: Practiced Perfection
Farm at: Fist and Gun

Best Drive Disc sets for Piper

Piper's 4-piece set is Fanged Metal. No other 4-piece set is recommended, so there is no substitute worth farming.

Fanged Metal Best in slot

4-piece: Whenever a squad member inflicts Assault on an enemy, the equipper deals 35% additional DMG to the target for 12s

2-piece: Physical DMG +10%. Drops from Fist and Gun.

2-piece options

For the 2-piece slot the bonus matters, not the set's name. Several sets share the same 2-piece bonus, so Piper can take it from whichever one you have spare pieces of:

Anomaly Mastery +8%: Phaethon's Melody
PEN Ratio +8%: Puffer Electro
Anomaly Proficiency +30: any of Freedom Blues, Chaos Jazz or Feathered Fate (they give the same bonus)
ATK +10%: any of Hormone Punk or Astral Voice (they give the same bonus)

Piper main stats: Disk 4, 5 and 6

Disks 1 to 3 always roll HP, ATK and DEF as their main stat, so the choice is on 4, 5 and 6. A > means "better than"; = means the two are about as good.

Slot	Main stat, best first
Disk 4	Anomaly Proficiency
Disk 5	PEN Ratio = ATK% = Physical DMG%
Disk 6	Anomaly Mastery

Piper substat priority

Roll for Anomaly Proficiency and ATK% first. A disc showing neither of those is rarely worth levelling for Piper, whatever else it has.

Anomaly Proficiency
ATK%
PEN
Flat ATK

Where to farm Piper's Drive Discs

Fanged Metal drops from the Fist and Gun Area Patrol stage. The other set it drops, Hormone Punk, is also in Piper's build (2-piece option), so every run there is useful.

Area Patrol stage	Sets it drops
Fist and Gun	Hormone Punk (2-piece option) Fanged Metal (best 4-piece)
Madman and Follower	Puffer Electro (2-piece option) Inferno Metal (not in this build)
Sharp Fang and Blunt Axe	Freedom Blues (2-piece option) Polar Metal (not in this build)
Hunter and Beast	Chaos Jazz (2-piece option) Proto Punk (not in this build)
Monster Duet	Branch & Blade Song (not in this build) Astral Voice (2-piece option)
Gunslinger vs Guardian	Shadow Harmony (not in this build) Phaethon's Melody (2-piece option)
Swiftspine and Splitclaw	Feathered Fate (2-piece option) Thorned Rose (not in this build)

Building more than one agent? The Area Patrol Recommender ranks every stage for your whole team at once, and the Drive Disc Stat Guide says which drops to keep while you farm.

Piper W-Engine and skill priority

Practiced Perfection S-rank, ATK sub-stat

Alice's Signature hands Piper up to 60 Anomaly Mastery, 30% ATK and 40% Physical DMG Bonus on top of a high Base ATK. As a stat stick it's so strong that it's her undisputed best choice.

Skills to level first

Special Attack
Assist
Chain Attack
Basic Attack
Dodge

Agents who also use Fanged Metal

These agents compete with Piper for the same set, which is worth knowing before you hand a good piece to one of them.

Check the discs you already have

Hundreds of discs in the inventory and no idea which ones Piper could use? Drive Disc Triage reads an export of your account and sorts every disc into lock or discard, checking each one against this build and every other agent you own.

Open Drive Disc Triage

Questions

What is the best Drive Disc set for Piper?

Fanged Metal 4-piece. For the 2-piece, any set with Anomaly Mastery +8%, PEN Ratio +8%, Anomaly Proficiency +30 or ATK +10% works.

What main stats should Piper use on Disk 4, 5 and 6?

Disk 4: Anomaly Proficiency. Disk 5: PEN Ratio = ATK% = Physical DMG%. Disk 6: Anomaly Mastery. Disks 1 to 3 have fixed main stats (HP, ATK and DEF), so only their substats matter.

What substats does Piper need?

In priority order: Anomaly Proficiency, ATK%, PEN, Flat ATK. The first two are what make a disc worth levelling for Piper; the rest are tiebreakers.

Where do I farm Piper's Drive Discs?

Fanged Metal drops from the Fist and Gun Area Patrol stage, alongside Hormone Punk. Each run at Lv.60 costs 60 Battery Charge and splits its S-rank discs between the two sets.