Moran
moron
Electric 
Assault Rifle 
Defender 
Burst 1 
Tetra Tier 5 Bring It On!
■ Activates at the start of the battle. Affects self.
DEF ▲ 3.51% with every 1% of HP loss.
■ Activates when landing 5 normal attacks when changing the weapon in use. Affects the target.
Deals 47.18% of final ATK as additional damage.
Leave It To Me!
■ Activates when firing the final bullet. Affects 3 enemy unit(s) with the highest ATK.
Taunt for 4 sec.
■ Activates when HP falls below 20%. Affects self.
Effect changes according to the number of activation time(s). Perseverance: Effect of each phase does not stack.
Once: Max HP ▲ 91% for 3 sec. Activates once per battle.
Twice: Max HP ▲ 69.84% for 3 sec. Activates once per battle.
Three: Max HP ▲ 51.09% for 3 sec. Activates once per battle.
Fair and Square!
■ Affects self.
Change the Weapon in use:
Damage: 14.7% of final ATK
Lasts for: 10 sec
Additional Effects:
Recovers 36.14% of attack damage as HP for 10 sec.
Attract: Taunt all enemies for 10 sec.
Note: Cannot take cover while casting Burst skill.
■ Affects all allies.
Damage Taken ▼ 35.14% for 10 sec.
DEF ▲ 14.85% of caster's DEF for 10 sec.
Skill recommendations
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.
Extra notes
By today's standards, a really bad kit that's just underwhelming on most (if not all) PVE content. Invest only if she is your waifu.