Arknights · operator

Rosa

Rosaロサ로사

★★★★★★Sniper Besieger Ranged

Unchanged since July 16, 2026

Deployment

DP cost24

Block1

Redeploy (s)70

Stats Stats at any level →

HP1,755

ATK1,032

DEF122

RES0

Attack interval (s)2.4

Skills

ATK Up γS1 · Manual · Per second · SP 30 · Initial 15 · 30s · Lv.10

ATK +100%

Drag to see per-level scaling

Split ShotS2 · Manual · Per second · SP 65 · Initial 45 · 60s · Lv.10

ATK +90%, and attacks hit one additional enemy

Drag to see per-level scaling

Avalanche BreakerS3 · Manual · Per second · SP 30 · Initial 15 · 8s · Lv.10

ATK +25%. Immediately fires harpoons at the 4 heaviest enemies within range, Binding them and attacking them once every second for the duration of this skill

Drag to see per-level scaling

Talents · Signature passive abilities

Bone Piercer

When attacking a heavy enemy, ignores 60% of its DEF (enemies with 3 weight or higher count for this effect)

Ideal Student

When this unit is in the squad, all [Ursus Student Self-government Group] Operators gain +10% ATK (+2%)

Potentials · Potential-rank bonuses

Potential 2DP Cost -1Potential 3Redeployment Time -4 secPotential 4ATK +34Potential 5Improves Second TalentPotential 6DP Cost -1

Modules · Elite-2 equipment

Siege Equipment Training DeviceSIE-X'Сердце'SIE-Y

Recruitment tags

Top OperatorRangedSniperDPSCrowd-Control

Profile

RaceUrsus

Place of birthUrsus

Date of birthOct 31

Height174cm

Prior to the Chernobog incident, Rosa attended a middle school in Chernobog City and served as the student council president. She joined Rhodes Island after the incident, and developed a very good reputation while working for the Logistics Department. She has now applied to be transferred to the front lines as a sniper operator.