ViperHas Favorite Item

A Water Code Attacker Shotgun Nikke who handles single-hit Burst and stage target debuffs in the Burst 2 slot.
With her Favorite Item, using her Burst Skill grants all allies Re-enters Burst Stage 2, and at Full Burst start, brief invincibility and Charm activate together.
If her reload tempo or range is off, her damage drops quickly.

When a target appears, she briefly grants all allies Increased ATK and Increased Hit Rate, and only while in Charm does each normal attack stack damage-over-time increase and Increased Hit Rate on herself. She keeps Increased Hit Rate on herself, and when Full Burst starts, she gains brief invincibility along with Charm, which removes her as one enemy's normal attack target. When she uses her Burst Skill, she grants all allies Re-enters Burst Stage 2. Her Burst Skill deals heavy single-hit damage to one designated enemy, and if the target is a stage target, also applies DEF reduction and damage over time based on final ATK to the same enemy.

Match engagement range to Shotgun spread.
If you plan to use Charm stacks, keep normal attack aim steady.
To make use of invincibility and target exclusion, align the Full Burst start order with your squad.
Auto is enough by default.

To shorten reload tempo, prioritize Resilience Cube. To further raise Max Ammo and reload speed, Adjutant Cube is the runner-up. Support ammo recovery with Bastion Cube. If Harmony Cube levels differ greatly, use the higher-level cube over the ranking.

Elemental Advantage damage and ATK lines are the baseline. For Shotguns, supplement firing density and stability with Max Ammo and Crit options.

Snake Bite is the core of her single-hit damage and the DEF reduction and damage over time against stage targets, so raise Burst first. Snake Scale carries invincibility, Charm, and Re-enters Burst Stage 2, so raise S2 next. Snake Sense is the gateway for ally buffs and Charm stacks, so match S1 as well.

Her own damage rises in boss fights against Electric Code enemies (= Water advantage) when elements match. She is a good fit for the same squad when Burst Gauge rotation matters in Special Interception and long single-boss fights. In Story she is fine as long as Shotgun range works, and in the Arena her strengths are Burst energy rotation and single-hit Burst.

When a target appears, she grants all allies Increased ATK and Increased Hit Rate.
Her Burst Skill deals single-hit damage, and against stage targets also applies DEF reduction and damage over time.
When she uses her Burst Skill, she grants all allies Re-enters Burst Stage 2.

As a Shotgun, her damage depends heavily on range and reload tempo.
Her Burst targets a single enemy, so it is hard to wear down many mobs evenly.

Included in the Standard Recruit pool.