GachaBuilds
Dr. Ratio
Honkai: Star Rail

Dr. Ratio build

Equipment options · Main stats · Team examples

Your build plan

For Dr. Ratio, compare Baptism of Pure Thought while keeping the recommended CRIT Rate >= CRIT DMG · Speed > ATK% · Imaginary DMG >= ATK% setup fixed. A weapon or set change is easier to judge when you do not also change the team and skill timing.

Equipment options

12 options

Start with equipment you can actually obtain. These are alternative recommendations, not pieces to equip together. Refinement, set size and team restrictions change the result.

Light Cones

Baptism of Pure Thought
Baptism of Pure Thought(S 1 )
Worrisome, Blissful
Worrisome, Blissful(S 1 )
Only Silence Remains
Only Silence Remains(S 5 )
Cruising in the Stellar Sea
Cruising in the Stellar Sea(S 5 )
+1 options
In the Night
In the Night(S 1 )

Relic sets

Pioneer Diver of Dead Waters
Pioneer Diver of Dead Waters( 4 -PC)
Wastelander of Banditry Desert
Wastelander of Banditry Desert( 4 -PC)
The Ashblazing Grand Duke
The Ashblazing Grand Duke( 2 -PC)

Planar ornaments

Duran, Dynasty of Running Wolves
Duran, Dynasty of Running Wolves( 2 -PC)
Izumo Gensei and Takama Divine Realm
Izumo Gensei and Takama Divine Realm( 2 -PC)
Firmament Frontline: Glamoth
Firmament Frontline: Glamoth( 2 -PC)
Inert Salsotto
Inert Salsotto( 2 -PC)

Main stats

Use the slot recommendations to make your first functional setup. When several stats are listed, choose the one that fills the gap in your current team rather than mixing every option.

BodyCRIT Rate >= CRIT DMG
FeetSpeed > ATK%
Planar SphereImaginary DMG >= ATK%
Link RopeATK%
Substats

SPD (breakpoint) > CRIT RATE = CRIT DMG > ATK%

Skill priority

Follow the skill order below for your next upgrade. Compare one rank at a time, and keep the same team and enemy so equipment changes do not hide the result.

Skills priority: Talent > Skill > Ultimate > Basic
Major Traces priority: Summation (A2) > Deduction (A6) > Inference (A4)

Abilities

Check ability names and unlock information against your current game form. Level, upgrades and variants can change skills.

Mind is Might

Ability type / unlock: Single Target · Energy gain: 20 Break: 10

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

ParameterValueCondition markers
Imaginary DMG50%Imaginary DMG · DMG

Intellectual Midwifery

Ability type / unlock: Single Target · Energy gain: 30 Break: 20

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

ParameterValueCondition markers
Imaginary DMG75%Imaginary DMG · DMG

Syllogistic Paradox

Ability type / unlock: Single Target | 140 energy cost · Energy gain: 5 Break: 30

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

ParameterValueCondition markers
Imaginary DMG144%Imaginary DMG · DMG
time1
times2up to

Cogito, Ergo Sum

Ability type / unlock: Single Target · Energy gain: 5 Break: 10

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

ParameterValueCondition markers
Parameter40%Imaginary DMG · DMG
time1Imaginary DMG · DMG
Imaginary DMG135%Imaginary DMG · DMG
Parameter20%target enemy · each

Mold of Idolatry

Ability type / unlock: Impair · Energy gain: 0 Break: -

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
second10after
Parameter100%each · after
Parameter15%each
turn2each

Summation

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
CRIT DMG2.5%DMG · CRIT Rate · CRIT DMG
CRIT DMG5%DMG · CRIT Rate · CRIT DMG
time6up to

Inference

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter100%when · Effect RES
Effect RES10%Effect RES
turn2Effect RES

Deduction

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter3when · each · DMG
Parameter10%maximum · up to
Parameter50%maximum · up to

Pride Comes Before a Fall

Ability type / unlock: Eidolon 1

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter4maximum
stacks4when

The Divine Is in the Details

Ability type / unlock: Eidolon 2

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
DMG20%DMG
time4each · maximum

Know Thyself

Ability type / unlock: Eidolon 3

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter+2maximum · up to
Parameter+1maximum · up to

Ignorance Is Blight

Ability type / unlock: Eidolon 4

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Energy15when · Energy

Sic Itur Ad Astra

Ability type / unlock: Eidolon 5

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter+2maximum · up to

Vincit Omnia Veritas

Ability type / unlock: Eidolon 6

Skill parameters

Check the selected level and any upgrade requirements. Separate values can belong to different targets, triggers or phases; they do not necessarily apply together. These tables summarize numerical parameters, while some effects still require a complete gameplay explanation.

Displayed version

ParameterValueCondition markers
Parameter50%DMG

Displayed stats

Level 80

HP 1047
ATK 776
DEF 460
Speed 103

Team examples

A lineup is a starting point: check that each teammate is available and that your team can repeat its resource cycle. Replacing a unit also changes buff timing and defensive coverage.

GACHABUILDS

Test your setup

Balance critical rate with critical damage. A large damage number is less useful when critical hits are inconsistent; evaluate the complete setup rather than a single item.

Choose one option, run the same encounter twice, and change one variable. Record whether the next rotation starts on time and whether the team survives without losing its damage window.

Checked · 2026-10-13 · Patch 3.0

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