Common Key Database – Unique Character Keys

One of the most overlooked aspects when discussing character builds in Girls' Frontline 2: Exilium is Common Keys. Common Keys are different from Fixed Keys (which are unlocked through a character's Neural Helix), in that they can be equipped to any character in the game, and often give minor stat boosts (which differ from key to key) to the equipping character, rather than provide exciting or unique effects.

Many of these Common Keys are simply acquired through events, though some can be gotten by raising Dolls' Affinity levels to 5 in the Dormitory, by giving them Gifts. All of these Common Keys provide simple stat boosts. There is, however, a different type of Common Key.

When you completely unlock every single Fixed Key in a Doll's Neural Helix (yes, all six of them, which adds up to 18 Basic Info Cores on Elite Dolls and 8 Basic Info Cores on Standard Dolls), that Doll's unique Common Key becomes available. In addition to a stat boost, these Common Keys provide special effects that often are of great benefit to that Doll's kit.

...But here's where it gets interesting: these are Common Keys, which mean they can be equipped to any Doll. That means that, in theory, you might want a certain character's Common Key just to put it on another character that you frequently use (which, given how rare Basic Info Cores are, is often an expensive, painful prospect!).

Bearing this in mind, I thought it might be helpful to not only list out these unique Common Keys, but to also make recommendations for other Dolls (besides the one whose key it actually is) to which you might want to equip them, as well as take a stab at rating each key on a scale of 1 to 5 stars. The ratings are based largely on the general usability and usefulness of each key (and to some degree the usefulness of the characters who tend to want to equip them).

My hope with this is to make it easier for players to decide which Common Keys work best for their team of Dolls, and to plan out where they might want to spend their Basic Info Cores (at least with the goal of making their existing character's better).

Please keep in mind, the list of recommended Dolls under each key is not exhaustive (or in any particular order), so there may be other Dolls who would benefit from them that are not listed. For the most part, I tried to give preference to the most meta-relevant Dolls, so some might show up more than others.

Oh, and the list is alphabetical according to the name of the Doll to which each Common Key belongs. With all of that being said, here is my Common Key Database!

Common Key Database - Unique Character Keys

---

---