Dr. Ratio
Situational—Dr. Ratio needs debuff stacks for FUA. Ultimate “Syllogistic Paradox” fires Follow-Up ATKs off ally Basics. Best with Topaz / Robin / Aventurine / Silver Wolf. Follow-ups want 3+ debuffs on the target. Skip when you lack Topaz/Robin and have Feixiao instead.
Dr. Ratio is a 5★ Imaginary The Hunt Main DPS. Skill “Intellectual Midwifery” is the primary in-combat spend. Ultimate “Syllogistic Paradox” is the payoff window for damage or team utility. This Phase 1 page covers kit text, gear targets, and pull notes—team comps stay empty until Phase 2.
Overview
Quick Build
Light Cone
Baptism of Pure Thought
Signature BiS when owned.
Relic Set
Scholar Lost in Erudition (4pc) + Firmament Frontline: Glamoth (2pc)
Standard The Hunt relic direction for Dr. Ratio.
Body
CRIT Rate%
Main stat
Feet
ATK%
Main stat
Sphere / Rope
Imaginary DMG% · ATK%
Substats
CRIT Rate ≥ CRIT DMG > ATK% > SPD
Strengths
- “Syllogistic Paradox” dumps a huge single-target Imaginary multiplier into one elite—boss and Apocalyptic Shadow checks are where this Ultimate earns its trace levels.
- Talent “Cogito, Ergo Sum” builds into self-triggered Follow-Up ATKs—stack management is the real rotation, not just Skill spam.
- Skill “Intellectual Midwifery” dumps a large single-target multiplier into one elite—this is the spend that keeps the rotation honest.
- When you own “Baptism of Pure Thought”, Dr. Ratio’s damage or utility ceiling jumps because the cone was written around this kit’s triggers—not a generic path stick.
Weaknesses
- “Syllogistic Paradox” is single-target—multi-wave Pure Fiction asks the rest of the team to clear trash while Dr. Ratio focuses the elite.
- “Cogito, Ergo Sum” Follow-Ups only fire after the Charge/HP conditions are met—wasting Skill or over-healing can strand Dr. Ratio below the Follow-Up threshold for a full cycle.
- E0 without “Baptism of Pure Thought” is still clearable, but the gap versus a signature copy is larger than a single eidolon for most The Hunt carries—plan the cone before deep eidolon hunting.
- Spamming “Intellectual Midwifery” every turn without watching Skill Points strands the rest of the team—Dr. Ratio is often the SP sink.
Trace Priority
Syllogistic Paradox carries most of the kit’s damage or utility—level this first.
Intellectual Midwifery supports the main rotation—raise after the top priority traces.
Cogito, Ergo Sum supports the main rotation—raise after the top priority traces.
Mind is Might is last priority outside of filling trace materials.
Stat Priority
Open with Technique if it helps, spend Skill to advance the kit’s resource, and hold Ultimate for the damage or buff window. Exact teammate order lands in Phase 2.
Open supports first, then spend the carry’s Skill/Ult inside the buff window. Exact order varies by the team tab above.
Light Cones
5★ · Path cone
Increases the wearer's CRIT DMG by 0.2%. For every debuff on the enemy target, the wearer's CRIT DMG dealt against this target additionally increases by 0.08%, stacking up to 3 times. When using Ultimate to attack the enemy target, the wearer receives the "Disputation" effect, which increases DMG dealt by 0.36% and enables their Follow-Up ATKs to ignore 0.24% of the target's DEF. This effect lasts for 2 turns.
Why it works —Signature / best-in-slot when owned—passive lines up with Dr. Ratio’s kit triggers.
5★ · Path cone
Increases the wearer's CRIT Rate by 0.08%, and increases their CRIT Rate against enemies with HP percentage 0.5% or less by an extra 0.08%. When the wearer defeats an enemy, their ATK is increased by 0.2% for 2 turn(s).
Why it works —Best accessible option for most accounts—raise superimposition when copies drop.
4★ · Path cone
For each time the wearer hits the same target, DMG dealt increases by 0.08%, stacking up to 5 time(s). This effect will be dispelled when the wearer changes targets.
Why it works —Budget path cone—fine while building the account.
4★ · Path cone
Increases the wearer's ATK by 0.16%. If there are 2 or fewer enemies on the field, increases wearer's CRIT Rate by 0.12%.
Why it works —Budget path cone—fine while building the account.
Relics
Team Compositions
Primary Follow-up team for Dr. Ratio. Topaz & Numby, Robin, Aventurine are the partners the kit / endgame clears assume first.
Core carry for this shell — owns the damage plan and sets the rotation pace.
Topaz & Numby is the damage seat in this shell — build the supports around their rotation, not the reverse.
Robin is the Advance / DMG amp — time their Skill/Ult for the carry’s damage window.
Aventurine shields the hypercarry and softens MoC / AS chip so glass DPS can commit to Skill spam.
Traces & Eidolons
Traces
Deals Imaginary DMG equal to 140% of Dr. Ratio's ATK to one designated enemy target.
Deals Imaginary DMG equal to 188% of Dr. Ratio's ATK to one designated enemy target.
Deals Imaginary DMG equal to 288% of Dr. Ratio's ATK to one designated enemy target and applies "Wiseman's Folly." When Dr. Ratio's teammates attack a target afflicted with "Wiseman's Folly," Dr. Ratio launches 1 instance of his Talent's Follow-Up ATK against this target. "Wiseman's Folly" can be triggered for up to 2 times and only affects the most recent target of Dr. Ratio's Ultimate. This trigger count resets after Dr. Ratio's Ultimate is used.
When using his Skill, Dr. Ratio has a 40% fixed chance of launching a Follow-Up ATK against his target for 1 time, dealing Imaginary DMG equal to 338% of Dr. Ratio's ATK. For each debuff the target enemy has, the fixed chance of launching Follow-Up ATK increases by 20%. If the target enemy is defeated before the Follow-Up ATK triggers, the Follow-Up ATK will be directed at a single random enemy instead.
After using Technique, creates a Special Dimension that Taunts nearby enemies, lasting for 10 second(s). After entering battle with enemies in this Special Dimension, there is a 100% base chance to reduce each single enemy target's SPD by 15% for 2 turn(s). Only 1 Dimension Effect created by allies can exist at the same time.
Eidolons
The maximum stackable count for the Trace "Summation" increases by 4. When a battle begins, immediately obtains 4 stacks of Summation. Needs to unlock Summation first.
Is it worth getting?
Modest E1: The maximum stackable count for the Trace "Summation" increases by 4. Helpful padding, not a build-defining unlock.
When his Talent's Follow-Up ATK hits a target, for every debuff the target has, deals Imaginary Additional DMG equal to 20% of Dr. Ratio's ATK. This effect can be triggered for a maximum of 4 time(s) during each Follow-Up ATK.
Is it worth getting?
Kit add-on: When his Talent's Follow-Up ATK hits a target. Evaluate against your supports—pull only if that specific clause solves a problem you actually hit.
Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Is it worth getting?
Ultimate + Basic ATK levels only (+2). Free if you roll into it; never spend currency aiming for E3.
When triggering the Talent, additionally regenerates 15 Energy for Dr. Ratio.
Is it worth getting?
Side-grade: Refunds Energy when the listed trigger fires. Happy if it drops; not a planned stopping point.
Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Is it worth getting?
Skill + Talent levels only (+2). Skip as a goal—grab it if you overshoot toward E6, never hard-pity for it.
Additionally increases the trigger count for "Wiseman's Folly" by 1. The DMG dealt by the Talent's Follow-Up ATK increases by 50%.
Is it worth getting?
Whale ceiling: Flat combat-stat bump tied to a specific trigger. Only chase if Dr. Ratio is your dedicated The Hunt main and E0–E2 already feel finished.
Dr. Ratio is fully usable at E0. Dedicated mains often stop at E0 before chasing higher. First stop: E0. Endgame target: E0.
Alternatives to Dr. Ratio
Not sure Dr. Ratio is right for you? Compare against similar characters to find your best pull.
You need a Quantum The Hunt unit and Archer's kit matches your account gap.
You need a Lightning The Hunt unit and Ashveil's kit matches your account gap.
You need a Physical The Hunt unit and Boothill's kit matches your account gap.
You need a Wind The Hunt unit and Dan Heng's kit matches your account gap.
You need a Wind The Hunt unit and Feixiao's kit matches your account gap.
You need a Imaginary The Hunt unit and March 7th's kit matches your account gap.
You need a Lightning The Hunt unit and Moze's kit matches your account gap.
You need a Quantum The Hunt unit and Seele's kit matches your account gap.
You need a Physical The Hunt unit and Sushang's kit matches your account gap.
You need a Fire The Hunt unit and Topaz & Numby's kit matches your account gap.
You need a Ice The Hunt unit and Yanqing's kit matches your account gap.