Operator overview: Rosa

Operator

File

Overview

Dialogue

Gallery

Trivia

The eldest daughter of Count Andrey Rostov of Ursus who attended the #4 Secondary School in Chernobog, Natalya Andreyevna Rostova's good upbringing earned her a place as her school's student council president and an example for other students to follow, titled the "Pearl of #4". However, the Chernobog uprising changed everything. Natalya was forced to make difficult decisions when she and the other students were trapped in their school by Reunion, and she witnessed the plight and bloodshed among both commoners and aristocrats alike. This left a deep guilt inside her and caused Natalya to suffer from depression, self-loathing, and suicidal thoughts.

Fortunately, Natalya survived the ordeal and together with Anna Morozova, Lada, Rosalind and Sonya as the figurehead of the Ursus Student Self-Governing Group, she was later rescued by Rhodes Island. Under the codename "Rosa", Natalya lent her aid to R.I.'s Logistics Department and as a field combatant utilizing a "siege equipment" in the form of a harpoon launcher to skewer hostiles from a distance.

Introduction

Rosa is a 6★ Besieger Sniper who specializes in DPS and Crowd-Control. What defines Rosa as a Besieger Sniper is an unusual range which covers 3×4 tiles ahead of her with 3-tile extensions to the sides from Elite 1 and a minimum range of the frontal tiles (effectively reducing Rosa's range to 3×3 tiles ahead of the minimum range with 2-tile extensions to the sides from Elite 1), targets enemies with the highest weight (in other words, the heaviest enemy) over the others while attacking, and high ATK and above-average DP cost.

Talents

1. Bone Piercer causes Rosa's attacks against enemies with a weight of at least 3 to ignore a portion of the target's DEF.
2. Ideal Student buffs the ATK of U.S.S.G. Operators while Rosa is in the squad.

Skills

1. ATK Up γ buffs Rosa's ATK while active.
2. Split Shot buffs Rosa's ATK and makes her attacks hit up to two targets within range while active.
   • With Split Shot, Rosa can dispatch multiple enemies more reliably and mitigates her slow attack rate, which is further supported by its long duration and good uptime.
3. Avalanche Breaker has Rosa launch harpoons at multiple enemies which prioritizes those with the highest weight over the others (as with her regular attacks) and latches onto them, Binding the targets for a short time during which they are also "attacked" by Rosa every second, whose ATK is also buffed.
   • Avalanche Breaker can be effective in stalling high-HP, high-DEF enemies as they typically have heavy weight and Avalanche Breaker effectively locks them in place so that DPS Operators have an easier time bringing them down while also being an effective method to quickly remove lighter enemies like Wraiths and Hounds as needed.

Operator Module

The SIE-X Operator Module, Siege Equipment Training Device, increases Rosa's ATK against enemies with a weight of at least 3 to 1.15×, in addition to increasing her ATK and DEF. Once upgraded, Bone Piercer also deals an additional instance of Physical damage equal to a lesser portion of Rosa's ATK.

• Siege Equipment Training Device is mandatory to equip, especially due to the later enemies having significant HP and/or DEF, since it now allows her to pierce through any heavy foe who Rosa otherwise could not do much, as such The Last Steam Knight.

Base skills

1. Student Council President makes each U.S.S.G. Operator in the Control Center restore 0.05 morale per hour to all Operators there (including themselves) while Rosa is assigned to the Control Center.
2. Prestige increases the recruitment tag refresh generation rate by 20% and makes it more likely for U.S.S.G. clues to be obtained for each refresh generated (so long as they are not used) while Rosa is assigned to the HR Office, which is influenced by how long Rosa has been in the Office and the amount of recruitment slots.

Summary

Despite of the difficulties in using her effectively due to the quirks related to her attacks and skills, Rosa is a great introduction to the Besieger Snipers who dedicates herself to dispatch heavyweight enemies by her hard-hitting attacks.