Asuka Shikinami
Fire 
Assault Rifle 
Attacker 
Burst 3 
Abnormal Tier 2 Competitiveness
■ Activates at the start of the battle. Affects self.
Damage dealt to Shield ▲ 601.01% continuously.
(It only affects the damage dealt to the shield, not to the Rapture itself)
■ Activates when recovery takes effect. Affects self.
ATK ▲ 96.98% for 25 sec.
Assault Tactics
■ Activates when entering Full Burst. Affects self when in Shield status.
Damage as strong element ▲ 30.02% for 10 sec.
■ Activates when entering Full Burst. Affects all Fire Code allies.
Damage dealt when attacking core ▲ 60.07% for 10 sec.
Piercing Bullets
■ Affects self.
Gain Pierce for 25 sec.
Attack damage ▲ 150.04% for 10 sec.
Recovers 3.16% of attack damage as HP over 10 sec.
Hit Rate ▲ 101. 37% for 10 sec.
Skill recommendations
Build
CUBES
Bastion or Pierce for extra damage. She only takes 1 second to reload, so you benefit more from the extra bullets or pierce buffs rather than toher cubes.
OL GEAR
You want 1 or 2 lines of max ammo capacity to offset her small magazine (20) by default. After that, focus on Elemental DMG and ATK. You can get crit lines as fillers. No need for hit rate since she already buffs herself on burst.
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
- Amazing buffs on her own. If you want a buffer for her, focus on damage taken or stuff she can’t get on her own
- Good buffer for fire DPS on bosses and raids thanks to the skill 2 increasing damage to cores
- Life leech on burst helps a lot with survivability if you are not running healers or just cover repair units
- Life leech on burst procs skill 1 ATK buff. Her whole kit works on its own without any external buffers (this is good and bad)
- 20 bullets base magazine, pretty expensive girl in temrs of investment, since you need both OL gear and skill levels
- Limited team compositions since you need damage taken or anything that her kit doesn't provide already