Zenless Zone Zero · Progression guide
ZZZ Anomaly Proficiency vs Anomaly Mastery: Which Stat Do You Need?
If your Assault arrives after the stun ends, bigger damage per proc will not fix the timing. If the same sequence already triggers Assault in time, faster buildup might leave the number of procs unchanged. Start by counting what actually happens in one rotation.
Quick answer · Our advice
Choose Mastery if a realistic increase lets the same rotation cross a gauge threshold in time. Choose Proficiency if the sequence already gets the same procs at the same useful moments and the damage you want to improve comes from those procs.[1][2]
Version 3.3 context. Ordinary Attribute Anomaly only; the documented buildup model is from Version 1.2 testing. Special Agent effects need their own rules.
What do Anomaly Mastery and Anomaly Proficiency change?
Anomaly Mastery (AM) scales the buildup applied by an eligible action. The action’s base buildup, rate bonuses and the target’s resistance matter too. Holding those other inputs fixed, moving from 100 to 120 AM adds 20% to that action’s buildup.[1][2]
Anomaly Proficiency (AP) is one factor in ordinary Anomaly damage. At fixed attack, level, buffs, target and contribution, moving from 250 to 300 AP raises the AP factor by 20%. The direct hit that filled the gauge and the damage from the resulting status are separate outputs.[1]
Our suggested checks
Swipe across the table to see all columns.
| What you observe | Compare first | What to record |
|---|---|---|
| Gauge stops just short before the swap | Mastery or a higher-buildup action | How many actions the next proc takes |
| Both builds trigger at the same point | Proficiency and other damage stats | Proc damage on the same enemy |
| Gauge fills, but you cannot trigger again immediately | Proc timing and the kit’s trigger conditions | Time of the last proc and time of the next successful one |
| Same number of procs, different Disorder timing | The full two-attribute rotation | Which status landed first and which buffs were active |
Worked example: when Mastery saves an attack
Who contributes damage when two Agents fill one gauge?
In the documented ordinary shared-gauge model, the game weights relevant Agent stats by their buildup contributions. The Agent who lands the final hit does not automatically supply all the damage stats. The original analysis also distinguishes stat changes during buildup from target modifiers checked when damage is dealt.[1]
How to test a Drive Disc swap without mixing up the results
Our advice: Use the same enemy and restart each comparison from the same gauge state. Run the same skills and swaps. Count the actions until the first proc and note whether later procs still fit.
Our advice: Change one disc, record all stats it changes, and distinguish the direct hit from the status damage. If you also break a set bonus or lose a buff, attribute the result to the whole build change.
Our advice: For Disorder, note which attribute lands first, when the second lands and what was still active. Compare the same trigger order before concluding that one AP roll changed the result.[2]
- Some Agent effects break a baseline assumption. HoYoverse documented that Assault against a target in Jane’s Gnawed state can critically hit under her kit. Use the current Core Skill text for its conditions and for any later Agent adjustments.[3]
- Our advice: If a Core Skill grants buildup separately, reads AP for an extra effect or triggers a named special status, follow that description before applying the ordinary gauge example. The version notice is context for the game, not a formula for new kits.[4][1]
ZZZ Anomaly stat questions
Does Proficiency fill the gauge faster?
Ordinary buildup uses Mastery alongside the action and other buildup modifiers. Check the specific Core Skill if it converts Proficiency into a separate effect.[1]
Can more Mastery improve damage?
Our advice: It can fit another proc or move one inside a better window. If the count and timing stay the same, inspect damage per proc and any change to the Agents’ share of the gauge.[1][2]
Why do I get different results against a boss?
Our advice: Buildup resistance, available actions and repeated procs can change the threshold or timing. Repeat the comparison on the target you are building for.[1]
Keep reading
All game guidesCurrencies & resources
Zenless Zone Zero Rewards: Polychrome, Tapes & EXP
Understand Master Tapes versus Encrypted Master Tapes, Denny, Investigator Logs, W-Engine Power Supplies and Bangboo modules in ZZZ reward codes.
Redemption & troubleshooting
How to Redeem Zenless Zone Zero Codes & Fix Errors
Redeem Zenless Zone Zero codes through Menu, More and Redemption Code or the official website. Check the Prologue unlock, server region and used-code errors.
Gameplay & upgrade decisions
ZZZ: Skills or Drive Discs First? Agent Upgrade Priorities
Choose your next Zenless Zone Zero upgrade: Agent promotion, Core Skills, W-Engines or Drive Discs. Includes role-based checks and a Battery Charge plan.
Gameplay & upgrade decisions
Why Is Your ZZZ Stun Window Dealing So Little Damage?
Diagnose low stun damage in Zenless Zone Zero. Compare buff timing, Chain Attacks, swaps and when your strongest hits actually land.
Gameplay & upgrade decisions
ZZZ Jane Doe W-Engine Guide: Sharpened Stinger vs Weeping Gemini
Compare Jane Doe’s signature with the A-Rank Weeping Gemini. Test first Assault, stun timing and stack uptime before spending Polychromes.