Guillotine
Electric 
Machine Gun 
Attacker 
Burst 3 
Elysion Tier 5 Residual Heat
■ Affects self. Activates after landing 30 normal attacks.
Critical rate ▲ 9.28% for 10 sec.
HP ▼ 2.01%
Shroud of Darkness
■ Activates after landing 150 normal attack(s). Affects self.
Critical Damage ▲ 14.69% for 5 sec.
■ Activates when HP falls below 70%. Affects self.
ATK ▲ 0.96% with every 1% of HP loss. This effect is active continuously.
Dragon of the Deep
■ Affects the enemy with the highest ATK.
[Target] Deals 1237.5% of final ATK as damage.
■ Affects the same target when HP falls below 50%.
Deals 1237.5% of final ATK as additional damage.
Skill recommendations
Build
CUBES
Resilience for low ammo build, if you get enough max ammo capacity, Bastion is better for all machine guns in the game.
OL GEAR
Max ammo, elemental damage and ATK take priority on most of your gear. You can also mix some crit damage / rate as filler lines.
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
- Needs to be low HP in order to take advantage of her heals, which can lead to plenty of situations where she just gets killed
- One of the worst battle pass skins the game made