Mari Makinami
Electric 
Sniper Rifle 
Supporter 
Burst 2 
Abnormal Tier 3 Precision Sniping
■ Activates when landing an attack with Full Charge. Affects all allies.
Damage dealt to Shield ▲ 100.09% for 3 sec.
(It only affects the damage dealt to the shield, not to the Rapture itself)
■ Activates when hitting the target's core. Affects all allies.
Pierce Damage ▲ 40.99% for 10 sec.
Full Focus (Cooldown: 10s)
■ Affects self.
Gain Pierce for 5 sec.
ATK ▲ 30.78% for 5 sec.
■ Affects all allies.
ATK ▲ 30.78% of caster's ATK for 5 sec.
GPS Guided Missile
■ Affects all enemies.
Deals 639. 36% of final ATK as damage.
■ Affects all allies.
Attack damage ▲ 40.99% for 10 sec.
Skill recommendations
Build
CUBES
Resilience and Pierce cube for higher damage. Bastion if both those cubes are full it's also fine to run.
OL GEAR
Low priority to OL. If you do, it does not really matter what you get. Max ammo and elemental DMG are good lines, of course.
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 support for pierce teams with Attack damage on burst, which is a lot stronger than normal ATK buffs. This is the reason she is so versatile
- Can be used as an offburst unit just to buff pierce characters, even if you would be losing on a lot of damage from her burst
- Damage to shields its still an incognito when it comes to how usable it will be, we’ll see in the future