Folkwang
Water 
Assault Rifle 
Defender 
Burst 2 
Tetra Tier 5 Starting Whistle (Cooldown: 30s)
■ Affects 2 targets with the highest ATK.
Gain a shield equal to 13.71% of the caster's final Max HP for 10 sec.
HP Potency ▲ 45.7% for 10 sec.
Harder, Better, Faster (Cooldown: 20s)
■ Affects the target with the highest ATK.
Taunt for 5 sec.
■ Affects self.
Max HP ▲ 44.96% for 10 sec.
Splint
■ Affects 2 allies with the highest ATK.
Gain a shield equal to 32.9% of the caster's final Max HP for 10 sec.
Restores 65.81% of attack damage as HP 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.
SeasonWeakness
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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.