Brid

A Water Code Burst 3 Assault Rifle DPS who targets the enemy with the highest final DEF using Leak1 and AZX2.
She is rarely a core pick for main slots in Story, bosses, or Raids, and almost never appears in Solo Raid lineups.
AZX2's additional damage only applies at full HP, so you need to keep her healthy.

Every time 30 normal attacks accumulate, her own ATK rises briefly. Leak1 deals damage to the 1 enemy with the highest final DEF. Her Burst Skill AZX2 also hits 1 enemy under the same condition, and if her HP is full, the same target takes additional damage once more.

Keep firing normal attacks to trigger the ATK buff every 30 shots.
Leak1 hits the enemy with the highest final DEF, and AZX2 targets the same enemy while she is at full HP.
Auto is fine by default; when her HP gets dangerous, take cover to keep the full-HP condition.

There is little evidence of combos used together in the same squad in the recent meta.

Keep her AR firing with Reload and Max Ammo. If Hit Rate is lacking, pick the Assault Cube. If the cube level gap is large, use the higher-level Harmony Cube regardless of ranking.

Her firepower is on the low side, so even with Elemental Advantage and ATK lines the gain is small. Hit Rate and Max Ammo help keep her AR firing.

Leak1 and AZX2 are the core of her damage against the highest-DEF enemy, so raise Skill 2 and Burst. AccelerationB only supports the 30-shot condition, so keep Skill 1 low.

She is almost never placed in main slots for general PvE. She may occasionally come up only as an experimental Arena pick. For the Burst 2 Supporter slot, Brid: Silent Track is the better choice.

AZX2 deals heavy additional damage to the same enemy while she is at full HP.
Leak1 has a short cooldown, so she can hit high-DEF enemies often.

Leak1 and AZX2 hit only the 1 enemy with the highest final DEF.
AccelerationB requires 30 normal attacks, so her ATK only rises after enough basic-attack damage has built up.
Her firepower and squad value are low compared with current meta DPS Nikkes.
Brid: Silent Track is the better pick for the Burst 2 Supporter slot.

She is an AZX2 driver for Infinity Rail.