Rouge
Electric 
Sniper Rifle 
Supporter 
Burst 1 
Tetra Tier 1 Card Throw
■ Activates when attacking with Full Charge for 8 time(s). Affects all allies.
Max HP ▲ 5% of the caster's Max HP without restoring HP, lasts for 5 sec.
Cooldown of Burst Skill ▼ 7 sec.
Coin Flip
■ Activates when assigned to the back row in battle. Affects self and 2 allies on both sides.
Sword Coin: Attack Damage ▲ 6.65% continuously.
■ Activates when attacking with Full Charge for 30 time(s). Affects self and 2 allies on both sides when in Sword Coin status.
Shield Coin: Damage Taken ▼ 15.2% continuously.
■ Activates when using Burst skill for 5 time(s). Affects all allies when in Shield Coin status.
Double Sword Coin: Max HP ▲ 15.08% of caster's Max HP continuously.
Game Master
■ Affects all allies.
ATK ▲ 15.07% of caster's ATK for 10 sec.
■ Activates when in Sword Coin status. Affects all allies.
Max HP ▲ 10.15% of caster's Max HP without restoring HP, lasts for 10 sec.
■ Activates when in Shield Coin status. Affects all allies.
Max HP ▲ 20.1% of caster's Max HP, lasts for 10 sec.
■ Activates when in Double Sword Coin status. Affects all allies.
Max HP ▲ 30.02% of caster's Max HP without restoring HP, lasts for 10 sec.
Skill recommendations
Build
CUBES
Resilience for better rotations. Charge speed or max ammo cubes if no empty spaces on your main cubes can work.
OL GEAR
Charge speed and Max ammo take priority. ATK as filler line, the rest doesn’t really matter. Two decent lines of charge speed / max ammo are more than enough, don’t try to get it on all her pieces.
Solo Raid Usage
This is based on the top 50 players of all NIKKE servers combined. Data is from enikk.app, check their website for a lot more raid data.
Pros & Cons
- Doesn’t need high investment since you’re mostly using her for skill 1 that provides CDR (level 7 or 8 it’s more than enough)
- Opens up A LOT of team compositions thanks to being a 777 squad member and the ability to be paired with Blanc and/or Noir
- Strong CDR like D: Killer Wife since it’s a literal copy with just different reload speed
- Her buff modifiers are not that high (ATK and attack damage) but it’s a nice extra to the CDR
- She needs to be positioned in the back row (position 2 or 4) and most people will either never read that part of the kit or completely forget
- Not auto or beginner-friendly because the positioning mechanic for the buffs since units are getting more complex and people… well, they just don’t read