Caesar Build: Best Drive Discs & Stats (ZZZ)

Caesar is an S-rank Defense agent in Zenless Zone Zero. This Caesar 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: Astral Voice
2-piece: Impact +6%, Increases Daze of attacks by 6% or Increases Shield effect by 15%
Disk 4: CRIT Rate or Anomaly Proficiency
Disk 5: Physical DMG%
Disk 6: Impact
Substats: CRIT Rate > CRIT DMG > ATK%
W-Engine: Tusks of Fury
Farm at: Monster Duet

Best Drive Disc sets for Caesar

Caesar's best 4-piece set is Astral Voice. Proto Punk and Freedom Blues are the alternatives, in that order.

Astral Voice Best in slot

4-piece: Whenever any squad member enters the field using a Quick Assist, all squad members gain 1 stack of Astral, up to a maximum of 3 stacks, and lasting 15s. Repeated triggers reset the duration. Each stack of Astral increases the DMG dealt by the character entering the field using a Quick Assist by 8%. Passive effects of the same name do not stack

2-piece: ATK +10%. Drops from Monster Duet.
Proto Punk

4-piece: When any squad member triggers a Defensive Assist or Evasive Assist, all squad members deal 15% increased DMG, lasting 10s. Passive effects of the same name do not stack

2-piece: Increases Shield effect by 15%. Drops from Hunter and Beast.
Freedom Blues

4-piece: When an EX Special Attack hits an enemy, reduce the target's Anomaly Buildup RES to the equipper's Attribute by 20% for 8s. This effect does not stack with others of the same attribute

2-piece: Anomaly Proficiency +30. Drops from Sharp Fang and Blunt Axe.

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 Caesar can take it from whichever one you have spare pieces of:

Impact +6%: Shockstar Disco
Increases Daze of attacks by 6%: King of the Summit
Increases Shield effect by 15%: Proto Punk

Caesar 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	CRIT Rate = Anomaly Proficiency
Disk 5	Physical DMG% > ATK% = PEN Ratio
Disk 6	Impact

Caesar substat priority

Roll for CRIT Rate and CRIT DMG first. A disc showing neither of those is rarely worth levelling for Caesar, whatever else it has.

CRIT Rate
CRIT DMG
ATK%
PEN
Flat ATK
Anomaly Proficiency

Where to farm Caesar's Drive Discs

Astral Voice drops from the Monster Duet Area Patrol stage. The other set it drops, Branch & Blade Song, is not part of Caesar's build.

Area Patrol stage	Sets it drops
Monster Duet	Branch & Blade Song (not in this build) Astral Voice (best 4-piece)
Hunter and Beast	Chaos Jazz (not in this build) Proto Punk (4-piece option 2)
Sharp Fang and Blunt Axe	Freedom Blues (4-piece option 3) Polar Metal (not in this build)
Hunter and Hound	Shockstar Disco (2-piece option) Thunder Metal (not in this build)
Words and Weapons	Yunkui Tales (not in this build) King of the Summit (2-piece option)

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.

Caesar W-Engine and skill priority

Tusks of Fury S-rank, Impact sub-stat

Caesar's Signature and by far her best engine. It unconditionally grants 18% Impact and 30% larger Shields for the wearer, greatly enlarging her Aegis Shield and lifting her Daze. Whenever any party member triggers an Interrupt or Perfect Dodge, the whole squad also gains 18% DMG and 12% Daze for 20 seconds, elevating both her support and Daze output.

Skills to level first

Assist
Special Attack
Basic Attack
Dodge
Chain Attack

Agents who also use Astral Voice

These agents compete with Caesar 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 Caesar 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 Caesar?

Astral Voice 4-piece, with Proto Punk or Freedom Blues as the alternatives. For the 2-piece, any set with Impact +6%, Increases Daze of attacks by 6% or Increases Shield effect by 15% works.

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

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

What substats does Caesar need?

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

Where do I farm Caesar's Drive Discs?

Astral Voice drops from the Monster Duet Area Patrol stage, alongside Branch & Blade Song. Each run at Lv.60 costs 60 Battery Charge and splits its S-rank discs between the two sets.