Arknights · operator

Muelsyse

Muelsyseミュルジス뮤엘시스

★★★★★★Vanguard Tactician Ranged

Unchanged since July 16, 2026

Deployment

DP cost15

Block1

Redeploy (s)70

Stats Stats at any level →

HP1,813

ATK497

DEF117

RES0

Attack interval (s)1

Skills

Progressive MoisturizationS1 · Manual · Per second · SP 28 · Initial 8 · 15s · Lv.10

Gradually recovers 13 DP while skill is active, Muelsyse and her Flowing Shapes gain +50% ATK, +50 ASPD

Drag to see per-level scaling

Ecological InteractionS2 · Manual · Per second · SP 35 · Initial 18 · 15s · Lv.10

Immediately gains 15 DP, Muelsyse and her Flowing Shapes gain +50% ATK; if Flowing Shape is in Melee form, it recovers 5% HP every second and gains 25% Sanctuary, if Flowing Shape is in Ranged form, its attacks hit twice at random targets within attack range

Drag to see per-level scaling

Superficial RegulationS3 · Manual · Per second · SP 35 · Initial 18 · 15s · Lv.10

Immediately gains 15 DP, Muelsyse and her Flowing Shapes gain +50% ATK, if Flowing Shape is in Melee form, pulls surrounding enemies slightly towards it every 2 seconds and Stuns all blocked enemies; if Flowing Shape is in Ranged form, respawns all Flowing Shapes and attacks Bind enemies for 1.5 seconds

Drag to see per-level scaling

Talents · Signature passive abilities

Pure Water is Life

Can summon a Flowing Shape to assist in combat. Flowing Shapes can partially copy an undeployed Operator's attributes (Max HP, ATK, DEF, RES, Block Count, Attack Interval, Attack Range, Damage Type, and obtain a special trait depending on whether in melee or ranged form), will respawn 25 seconds after being defeated

Expenditure Economization

When in squad, all [Rhine Lab] Operators have -2 DP Cost, and the first [Rhine Lab] Operator deployed has an additional -2(+1) DP Cost

Potentials · Potential-rank bonuses

Potential 2DP Cost -1Potential 3Redeployment Time -4 secPotential 4ATK +25Potential 5Improves Second TalentPotential 6DP Cost -1

Modules · Elite-2 equipment

Dresser Flowing ShapeTAC-XFallen Leaves of Four SeasonsTAC-Y

Recruitment tags

Top OperatorRangedVanguardDP-RecoveryCrowd-Control

Profile

RaceElf

Place of birthUndisclosed

Date of birthNov 3

Height169cm

Muelsyse, Director of Rhine Lab's Ecological Section and a leading expert on life and environmental science in Columbia. She got in touch with Rhodes Island during the Trimounts incident, after which she entered into a long-term partnership agreement with us. She now works on multiple collaborative research projects with the Bioengineering Lab, as well as participating in relevant operations as a Vanguard operator.