Guide

How grading works

Every grade in ProxyDisc answers the same question: how close is this disc to the best possible disc for one specific agent?

A grade is always for one agent

A drive disc has no single "good" or "bad" value. A disc with CRIT Rate and CRIT DMG is excellent for an attacker and nearly worthless for an anomaly agent who wants Anomaly Proficiency. So ProxyDisc grades every disc separately for each agent who can use it. The same disc can be an S for one agent and an F for another, and both grades are correct.

What goes into the grade

1. The set

Each agent has a recommended 4-piece set and a short list of acceptable 2-piece sets. A disc from a set the agent does not use is not graded for them at all.

2. The main stat

Slots 1 to 3 always have the same main stat (HP, ATK and DEF), so they cost nothing. Slots 4, 5 and 6 can roll different main stats, and each agent has a preferred one per slot. The best main stat scores fully. A lower-priority main stat that still works scores less. A main stat the agent never wants caps the grade low however good the substats are.

3. The substats

This is where most of the difference between discs comes from. Every agent has a substat priority list, for example CRIT Rate, then CRIT DMG, then ATK%, then PEN. A substat at the top of that list is worth the most. One further down is still useful but worth less. A substat that is not on the list at all is worth nothing to that agent.

Because the value is weighted, two substats are not simply "two hits". Two lines at the top of an agent's list are worth considerably more than two at the bottom.

Levelling and rolls

An S-rank disc gains a substat upgrade at +3, +6, +9, +12 and +15, so five rolls in total. Each roll lands on one of the disc's lines at random. A roll on a line the agent wants raises the grade; a roll on a line they do not want is wasted.

A disc that drops with only three substats spends its first roll adding a fourth line instead of upgrading one. That means it gets one fewer real upgrade than a disc that drops with four, which ProxyDisc accounts for.

A disc below +15 still has rolls to come, so its grade is provisional. The Upgrades tab shows a floor and a ceiling: the worst and best grade the disc can still finish at. If two or three rolls in a row miss, and the ceiling has dropped, it is usually time to stop spending on that disc.

What the letters mean

SExcellent. Rare, and close to the best a disc can be.

AVery strong. A disc most players would keep for good.

BGood. Worth using and keeping.

CUsable. Fine to wear until you find something better.

D / FWeak for this agent. Worth replacing, or better on someone else.

B is not a bad result. S discs are rare by design, because they need the right set, the right main stat and nearly every roll landing well. A full build of B and A discs is a strong build. Holding out for S on every slot usually wastes far more materials than it gains.

The number beside the grade

Each grade comes with a score out of 100. Two discs can both be a B while one is close to an A and the other only just made it. The score lets you tell them apart when choosing between two discs for the same slot.

The build score

In Loadouts, each agent gets a build score out of 100 for all six discs together. It is the average of what each slot contributes, so an empty slot counts as zero. A score of 100 means six perfect discs, which is extremely rare. Treat it as a way to see which agents would benefit most from your next good disc, not as a target to reach.

Keep, maybe or recycle

When you rate a fresh disc in Scrap or stash, ProxyDisc also gives a straight recommendation. It looks at the best agent the disc suits, how good it already is, and how high it could still go with its remaining rolls. A disc with a strong start and rolls still to come can earn a keep even if its current grade is modest, because levelling the first few times is cheap.