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Dr Ratio is an Imaginary and Hunt character in Honkai: Star Rail. Check out this guide for Dr. Ratio's best builds, team comps, relics, light cones, kit, and Materials here!
List of Contents
Dr. Ratio | Rarity | |
---|---|---|
Element | ||
Path | ||
Tier List Rating |
Overall
Single Target
AoE Damage
|
Ratings are based on E0.
HP | ATK | DEF | SPD | |
---|---|---|---|---|
Lvl. 1 | 142 | 62 | 103 | 103 |
Lvl. 80 | 1047 | 776 | 440 | 103 |
Dr. Ratio is one of the most powerful units in terms of dealing single-target DMG. His strong Follow-up attacks are most effective against Bosses and can become a lot stronger if enemies are affected by debuffs.
Dr. Ratio is worth building if you need a strong boss-killer who specializes in Follow-up Attacks!
Best Light Cone | Relics and Ornament | |||
---|---|---|---|---|
Baptism of Pure Thought | ||||
Main Stats | Sub Stats | |||
Body: CRIT Rate / CRIT DMG Feet: SPD or ATK% Sphere: Imaginary DMG Rope: ATK% | CRIT DMG ★★★ CRIT Rate ★★★ ATK% ★★ SPD ★★ |
Alternative Light Cones | |
---|---|
1 | |
2 | |
3 | |
4 | |
5 |
Dr. Ratio's best build is pretty straightforward as Pioneer Diver of Dead Waters will increase his DMG on debuffed enemies. The 4pc. effect can be boosted after Dr. Ratio uses his Ultimate.
Inert Salsotto will increase his Ultimate and Follow-up Attack DMG as long as he has at least 50% CRIT Rate, which should be easy to achieve thanks to his unlockable Traces.
DPS | Support | Support | Shielder |
---|---|---|---|
Dr. Ratio | Yukong | Asta | Natasha |
This free-to-play team is your typical Hypercarry setup where Dr. Ratio is the Main DPS. Yukong can increase Dr. Ratio's CRIT stats while Asta can buff his SPD and has a chance to Burn the enemy.
DPS | Buffer | Debuffer | Sustain |
---|---|---|---|
Dr. Ratio | Topaz | Ruan Mei | Aventurine |
Dr. Ratio | Topaz | Silver Wolf | Luocha |
Dr. Ratio's best teams typically consist of a buffer and a debuffer, with the latter being especially important for Dr. Ratio's Follow-up Attacks.
Topaz has amazing synergy with Dr. Ratio as she can provide additional DMG and increase his Follow-up Attack DMG.
If you have Aventurine, you can use Ruan Mei as your second Support unit since both characters can provide debuffs with their Ultimate. Otherwise, use Silver Wolf to implant a lot of debuffs on the enemy.
Alternative | Explanation |
---|---|
Tingyun | Buffer Replacement Tingyun can increase Dr. Ratio's DMG and provide energy so that Dr. Ratio can use his Ultimate more frequently. |
Bronya | Buffer Replacement Bronya can increase Dr. Ratio's DMG and provide extra turns with her Skill. |
Yukong | Buffer Replacement Yukong can increase Dr. Ratio's CRIT through her Ultimate. Yukong can also equip Planetary Rendezvous and Penacony, Land of the Dreams to increase Dr. Ratio's overall DMG. |
Guinaifen | Debuffer Replacement Guinaifen can provide a bunch of debuffs through Burn DoTs and Firekiss, allowing Dr. Ratio to consistently dish out Follow-up attacks. Guinaifen's 1st Eidolon can apply an Effect RES debuff onto enemies through the use of her Skill. |
Pela | Debuffer Replacement Pela's DEF shred can increase the DMG taken by enemies and increase Dr. Ratio's chances of dishing out Follow-up attacks. Pela can equip the Resolution Shines As Pearls of Sweat Light Cone to apply more DEF debuffs onto enemies. |
Gallagher | Sustain Replacement Gallagher can provide an ATK reduction debuff with his Enhanced Basic ATK. He can also heal the team as long as an ally attacks the debuffed enemy. |
Huohuo | Sustain Replacement Huohuo can provide AoE healing and cleanse debuffs. She can also restore the party's energy with her Ultimate. |
Gepard | Sustain Replacement The best shielder in the game and can keep the party alive in harder content. |
Fu Xuan | Sustain Replacement Fu Xuan can increase Dr. Ratio's CRIT Rate and redirect the DMG taken to herself through her Skill. |
Luocha | Sustain Replacement Luocha can heal the party without needing to consume Skill Points and can remove enemy buffs with his Ultimate. |
DPS | Support | Support | Shielder |
---|---|---|---|
Dr. Ratio | Yukong | Silver Wolf | Aventurine |
This Dr. Ratio team comp is viable in certain content where the enemy is weak to Quantum but not to Imaginary. Silver Wolf is a must-have for this team so she can implant an Imaginary Weakness on an enemy.
If the enemy is already weak to Imaginary, you can replace Silver Wolf with another debuffer.
Alternative | Explanation |
---|---|
Welt | Support Replacement Welt can delay the enemies' turn and debuff their SPD. He can also equip the Resolution Shines As Pearls of Sweat Light Cone to add more DEF debuffs and increase the chances of Dr. Ratio dishing out a Follow-up attack. |
Fu Xuan | Shielder Replacement Fu Xuan can increase Dr. Ratio's CRIT Rate and redirect the DMG taken to herself through her Skill. |
Lynx | Shielder Replacement Lynx can remove the debuffs inflicted on the party and provide AoE healing with her Ultimate. |
Relics | Rating & Merits |
---|---|
Pioneer Diver of Dead Waters x4 | ★★★★★ - Best Pioneer Diver of Dead Waters is Dr. Ratio's best-in-slot relic set as it increases his DMG on debuffed enemies. Dr. Ratio can provide his own debuff through his Ultimate, which further enhances his DMG. |
Wastelander of Banditry Desert x4 | ★★★★☆ - 2nd Best Wastelander of Banditry Desert is great for Dr. Ratio as it increases his CRIT if the target enemy is debuffed or Imprisoned. This is especially great if you have a debuffer at the party. |
Wastelander of Banditry Desert
x2
The Ashblazing Grand Duke x2 |
★★★☆☆ - 3rd Best A mixed set of Wastelander of Banditry Desert and Musketeer of Wild Wheat is a great budget option if you have better substats on those pieces. |
Ornaments | Merits |
Inert Salsotto | ★★★★★ - Best Inert Salsotto is the best ornament for Dr. Ratio as it increases his Follow-up attacks and Ultimate DMG. The CRIT Rate threshold should be easy to achieve thanks to Dr. Ratio's CRIT Rate buffs from his Traces. |
Firmament Frontline Glamoth | ★★★★☆ - 2nd Best Firmament Frontline Glamoth provides ATK stats which Dr. Ratio scales off of and a good DMG buff when he has at least 135 SPD. |
Izumo Gensei and Takama Divine Realm | ★★★☆☆ - 3rd Best Izumo Gensei is best used when Topaz is on Dr. Ratio's team. This gives a huge CRIT Rate boost to Dr. Ratio. |
Recommended Light Cones | How to Get |
---|---|
Limited Gacha | |
Limited Gacha | |
Limited Gacha | |
Gacha
Starlight Exchange |
|
Herta Store | |
Gacha | |
Gacha | |
Echo of War
Forgotten Hall |
|
Battle Pass | |
Gacha | |
Trace | Priority & Explanation |
---|---|
Basic Attack | ★☆☆☆☆ - Lowest Priority Dr. Ratio's Basic ATKs can be left out as his Skill deals a lot more DMG. |
Skill | ★★★★☆ - High Priority Upgrading Dr. Ratio's Skill simply increases its DMG. This is Dr. Ratio's go-to Trace if his Ultimate isn't up yet. |
Ultimate | ★★★★☆ - High Priority Upgrading Dr. Ratio's Ultimate simply increases its DMG. This deals a massive amount of DMG to an enemy. |
Talent | ★★★★★ - Highest Priority Majority of Dr. Ratio's DMG will come from his Follow-up attacks. Upgrading Dr. Ratio's Talent will increase his Follow-up attack DMG. |
Why We Recommend It | |
---|---|
E1 | ★★★★★ - Amazing Dr. Ratio's attacks against debuffed enemies get an automatic increase of CRIT Rate by 10% and CRIT DMG by 20%. His Summation stacks can go up to 10, which can provide him up to 25% CRIT Rate and 50% CRIT DMG. |
E2 | ★★★★★ - Amazing A great stopping point to make the most out of Dr. Ratio. Dr. Ratio's Follow-up Attacks deal additional DMG depending on the amount of debuffs an enemy has. |
E4 | ★★★☆☆ - Good Dr. Ratio's restores energy every time he unleashes a Follow-up attack. A minor buff to Dr. Ratio's Ultimate usage. |
E6 | ★★★★☆ - Great Dr. Ratio's Follow-up attack DMG gets increased and his Ultimate gets an extra Wiseman's Folly count. |
Dr. Ratio's Skill deals Imaginary DMG to one enemy and debuffs them. His Skill also has great synergy with his Talent, since it allows him to do a Follow-Up Attack at a certain chance after using his Skill.
Dr. Ratio has a 40% base chance of launching a Follow-Up attack on a single target after using his Skill. For each debuff the target enemy has, the fixed chance of launching the Follow-up attack can increase up to 100%. This means that Dr. Ratio will work well with Nihility characters!
If an enemy is defeated right before Dr. Ratio launches a Follow-up attack on said target, he will attack a random enemy instead.
Dr. Ratio's Ultimate deals Imaginary DMG to a single enemy target and applies Wiseman's Folly. When all other allies attack targets affected with Wiseman's Folly, Dr. Ratio will launch a Follow-up attack on them.
Dr. Ratio's Technique can create a special dimension that Taunts nearby enemies. After entering battle with enemies in the dimension, there is a base chance to reduce the enemies' SPD.
Trace | Scaling and Explanation |
---|---|
Skill | Intellectual Midwifery: Deals 75% of Dr. Ratio's ATK as Imaginary DMG to a single target enemy.
Stat Bonus: 1. ATK +6.0% |
Talent | Cogito, Ergo Sum: When using his Skill, Dr. Ratio has a 40% fixed chance of launching a follow-up attack against his target for 1 time, dealing Imaginary DMG equal to 135% of Dr. Ratio's ATK. For each debuff the target enemy has, the fixed chance of launching follow-up attack increases by 20%. If the target enemy is defeated before the follow-up attack triggers, the follow-up attack will be directed at a single random enemy instead. |
Ultimate | Syllogistic Paradox: Deals Imaginary DMG equal to 144% of Dr. Ratio's ATK to a single target enemy and applies Wiseman's Folly. When Dr. Ratio's allies attack a target afflicted with Wiseman's Folly, Dr. Ratio launches his Talent's follow-up attack for 1 time 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. |
Technique | Mold of Idolatry: 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 created by allies can exist at the same time.
Stat Bonus: 1. ATK +4.0% |
Basic ATK | Mind is Might: Deals 50% of Dr. Ratio's ATK as Imaginary DMG to a single target enemy.
Stat Bonus: 1. DEF +5.0% |
Bonus Ability | Summation: When Dr. Ratio uses his Skill, for every debuff on the target, his CRIT Rate increases by 2.5% and CRIT DMG by 5%. This effect can stack up to 6 time(s).
Stat Bonus: 1. CRIT Rate +2.7% 2. ATK +2.0% |
Bonus Ability | Inference: When Skill is used to attack an enemy target, there is a 100% base chance to reduce the attacked target's Effect RES by 10% for 2 turn(s).
Stat Bonus: 1. ATK +6.0% 2. CRIT Rate +4.0% |
Bonus Ability | Deduction: When dealing DMG to a target that has 3 or more debuff(s), for each debuff the target has, the DMG dealt by Dr. Ratio to this target increases by 10%, up to a maximum increase of 50%.
Stat Bonus: 1. DEF +7.5% 2. CRIT Rate +5.3% 3. ATK +8.0% |
E1 | Pride Comes Before a Fall 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. |
---|---|
E2 | The Divine Is in the Details When his Talent's follow-up attack hits a target, for every debuff the target has, additionally 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 attack. |
E3 | Know Thyself Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10. |
E4 | Ignorance is Blight When triggering the Talent, additionally regenerates 15 Energy for Dr. Ratio. |
E5 | Sic Itur Ad Astra Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15. |
E6 | Vincit Omnia Veritas Additionally increases the triggerable count for Wiseman's Folly by 1. The DMG dealt by the Talent's follow-up attack increases by 50%. |
Ascension Materials | Total |
---|---|
15 | |
15 | |
15 | |
65 | |
308,000 |
All Trace Node Materials | Total |
---|---|
15 | |
41 | |
72 | |
56 | |
139 | |
58 | |
12 | |
11 | |
3,000,000 |
Lvl | Basic ATK Ascension Materials | |||||
---|---|---|---|---|---|---|
2 | x3 | x6 | x5000 | |||
3 | x3 | x3 | x10000 | |||
4 | x5 | x4 | x20000 | |||
5 | x3 | x3 | x45000 | |||
6 | x8 | x4 | x160000 |
Dr. Ratio is a free limited 5-star who you can claim via Mail from Jan. 17, 2024, until the end of Version 2.1.
Limited Banners |
Panta Rhei |
---|
You can also get Dr. Ratio by pulling in the Character Warp banner called Panta Rhei which is available from Jan. 17, 2024, until Feb. 5, 2024.
Dr Ratio Banner Schedule and Rates
Voice Actor |
EN: Jordan Paul Haro JP: Shunsuke Takeuchi |
---|---|
Faction / Affiliation | Intelligentsia Guild |
Faction | Intelligentsia Guild |
---|---|
Background | Member of the Intelligentsia Guild. Eccentric temperament, sharp-tongued but with an elegant demeanor. The face under the strange plaster head sculpture is apparently unexpectedly handsome. |
Character Rarity | |
---|---|
★★★★ | ★★★★★ |
Character Paths | |||
---|---|---|---|
Destruction | Hunt | Erudition | Harmony |
Nihility | Preservation | Abundance |
Character Elements | |||
---|---|---|---|
Fire | Ice | Lightning | Wind |
Quantum | Imaginary | Physical |
Imaginary Characters | ||
---|---|---|
Luocha | Welt | Yukong |
Imbibitor Lunae | Dr. Ratio | Aventurine |
fr. hoyo shoot themself in the foot by distributing him for free lol. this free character is still top pick for 0 cycle moc with f2p investment.
Dr Ratio Best Builds and Teams
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he can 0 cycled aventurine boss despite the high img res. he really is a mistake.