Power
Fire 
Rocket Launcher 
Attacker 
Burst 3 
Abnormal Tier 5 Blood Fiend
■ Activates when attacking with Full Charge. Affects self.
Blood Fiend: ATK ▲ 6.4%, stacks up to 5 time(s) and lasts for 3 sec.
Blood Explosion
■ Activates when at Max Stacks of Blood Fiend after landing 18 normal attack(s). Affects self.
Explosion Radius ▲ 38.61% for 10 sec.
Reload ▲ 100%. Activates 1 time(s) per battle.
Blood Hammer
■ Affects 1 enemy unit(s) with the highest ATK.
Deals 1584% of final ATK as damage.
■ Affects the same target(s) when Blood Fiend is fully stacked.
Deals 1584% of final ATK as additional damage.
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.