ZZZ Drive Disc Triage

The ones no agent you own can use — this tool calls that pile discard, and it is everything left once the keeps are locked. Concretely, a disc is discardable when it is B or A rank, when no owned agent wants its set as a 4-piece or wants the 2-piece effect that set grants, when nobody who wants the set wants that main stat in that slot, or when too few of its substats appear on any of those agents' priority lists.

That last bar moves with the disc's level. A level-0 disc has only rolled its starting substats and has five upgrades still to come, so it is judged leniently. A disc at +12 or higher has spent every roll it will ever get: if two of its four substats are dead stats, that is permanent, and it is fodder no matter how good the set is.

Yes — breaking a disc down returns Drive Disc XP you can pour into the pieces worth keeping. The order that matters is: lock the keeps first, then act on what is left, because locking is what protects a piece from a bulk action.

Both lists are grouped by set and then by disc slot for the same practical reason. The in-game inventory can filter by set, slot and rarity but not by anything computed here, so a set header plus a slot header is the click path: set those two filters in game, and act on the discs listed under them.

For this tool, yes. ZZZ has no export button and no public inventory API, so the only way to read your 500-odd Drive Discs is to capture them from the game's own network traffic. Hollow Archive does that — it is a small open-source Windows exporter written for these tools, and it writes the ZOD JSON file the import box above reads. Nothing is uploaded: the file is parsed in your browser and stored only in this browser's localStorage.

If you would rather not run a capture, the Drive Disc Stat Guide answers the same question in the abstract: it needs only your roster, and tells you which main stats and substats to look for while you farm without knowing what you already own.

It depends on how deep your account is, which is why it is a slider rather than a fixed rule. Early on, discard less: you cannot re-farm a Drive Disc you have already broken down, your roster will grow into pieces that look useless today, and inventory space is far cheaper than a lost best-in-slot. Once you are farming Area Patrol daily with several agents built, discard more: you will out-farm anything the strict setting bins, and an inventory you can actually read is worth more than a pile of maybes.

The slider moves one thing only — the substat bar: how many of a disc's substats an agent has to want, how many of those have to be among that agent's top priorities, and, for a disc already at +12 or higher, how much of its levelling has to have landed on one of them. It never overrides the safety rules: discs you have equipped or locked in game are never proposed for the bin at any setting, anything using a set or stat this site does not recognise is kept, and a disc that rolled four substats with both CRIT Rate and CRIT DMG is always kept. The slider tells you how many of your loose discs it would discard at each setting, counted from your own inventory, so you can see the size of the decision before you make it — and nothing is ever discarded for you. Breaking a disc down is something you do in game, and it cannot be undone.

Because someone on your roster does. Verdicts are a union across every agent you own, not an opinion about your current team — if a slot-4 CRIT DMG piece is your benched Attack agent's best-in-slot, discarding it because they are not in your active team is a mistake you would only discover later. Selecting a team in the Area Patrol Recommender re-sorts the keep list so your team's pieces come first, but it never changes a verdict.

Discs you have equipped are always kept, whatever the maths says, as are discs you locked in game and anything using a set or a stat this build of the site does not recognise — equipped and locked discs are counted and then left out of both lists, because there is nothing to do about them. The bias is deliberate: keeping a dud costs you inventory space, while discarding a keeper is unrecoverable and invisible.

The same hand-vendored per-agent build data the Drive Disc Stat Guide uses: slot 4/5/6 main stats in priority tiers, a ranked substat list, and the 4-piece sets and 2-piece effects each agent wants. Sources are credited in the footer, and every verdict here names the agent and the reason behind it, so you can disagree with it on a specific piece rather than having to trust the pile.