Honkai Star Rail Dr Ratio materials, kit, and Eidolons

Dr Ratio is a 5-Star Imaginary character of The Hunt path coming to Honkai: Star Rail in version 1.6.

While Dr Ratio is featured as the boosted 5-Star character on his Banner in version 1.6 (and is free if you log-in between 1.6 and the end of 2.1) he will eventually return to Honaki: Star Rail at some point in the future when the Banner schedule cycles back to him.

If you want to prepare for getting him, we've detailed reliable leaks of Dr Ratio's Ascension materials and Trace materials so you can level him up to his full potential right away. To understand how you might play him, we've also detailed what we know about Dr Ratio's kit and Eidolons.

Keep in mind that this is leaked beta information, so Dr Ratio's materials and kit might change upon his official release.

On this page:

Honkai Star Rail Dr Ratio's kit

Dr Ratio is a 5-Star Imaginary character of The Hunt path who scales off attack and is best used as an attacker against debuffed enemies.

All of the percentages mentioned below are based on Level 1 Traces.

Keeping in mind that this is leaked beta information from Project Yatta that could change upon his official release, here's a summary of Dr Ratio's kit in Honkai Star Rail:

• Element: Imaginary.
• Path: The Hunt.
• Rarity: 5-Star.



• Basic Attack: Mind is Might (Deals Imaginary damage equal to 50% of Dr Ratio's attack to a single enemy).
• Skill: Intellectual Midwifery (Dr Ratio deals Imaginary damage worth 75% of his attack to a single enemy).
• Ultimate: Syllogistic Paradox (Deals Imaginary damage equal to 144% of Dr. Ratio's attack to a single target enemy and applies Wiseman's Folly. When Dr Ratio's allies attack a target with Wiseman's Folly, Dr Ratio launches his Talent's follow-up attack for one time against this target. Wiseman's Folly can be triggered for up to two times and only affects the most recent target of Dr Ratio's Ultimate. This trigger count resets after Dr Ratio's Ultimate is used).
• Talent (passive ability): Cogito, Ergo Sum (When using his Skill, Dr Ratio has a 40% fixed chance of launching a follow-up attack against his target for one time, dealing Imaginary damage equal to 135% of Dr Ratio's attack. 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).
• Technique (overworld ability): Mold of Idolatry (Dr Ratio creates a special dimension that Taunts nearby enemies, which lasts 10 seconds. After entering battle with enemies in the dimension there is a 100% base chance to inflict a 15% Speed Reduction on enemies for two turns. Only one dimension created by allies can exist at the same time).
• Bonus Trace 1: Summation (When Dr Ratio uses his Skill, for every debuff on the target, his Crit Rate increases by 2.5% and Crit Damage by 5%. This effect can stack up to six times).
• Bonus Trace 2: Inference (When his Skill is used to attack an enemy target, there is a 100% base chance to reduce the attacked target's Effect Resistance by 10% for 2 turns).
• Bonus Trace 3: Deduction (When dealing damage to a target that has three or more debuffs, for each debuff the target has, the damage dealt by Dr Ratio to this target increases by 10%, with a maximum increase of 50%).

Honkai Star Rail Dr Ratio Ascension materials

You need to use Dr Ratio Ascension materials to upgrade stats like his health, attack, defence, and critical hit effectiveness.

With the latest beta information sourced from honeyhunterworld, it looks like you need to get a lot of Suppressing Edict and Thief's Instinct-based materials for Dr Ratio to fully upgrade his capabilities.

In total, the Dr Ratio Ascension Materials in Honkai: Star Rail are:

• x15 Thief's Instinct
• x15 Usurper's Scheme
• x15 Conqueror's Will
• x65 Suppressing Edict
• 308,000 Credits

For more details, here's what Dr Ratio Ascension materials you need per level:

Remember, this is leaked beta information that could change upon Dr Ratio's official release.

Honkai Star Rail Dr Ratio Trace materials

Just like Ascension, to get the most out of using Dr Ratio you will have to level-up his attacks and passive abilities by using Trace materials, which vary from character-to-character.

With thanks to honeyhunterworld again for sourcing the information, for Dr Ratio it looks like you'll need to use a lot of Thief's Instinct and Arrow-based materials to fully upgrade his capabilities.

In total, to upgrade all of his abilities, the Dr Ratio Trace Materials you need are:

• x8 Tracks of Destiny
• x12 Past Grievances of the Planet-Boring Disaster
• x18 Arrow of the Beast Hunter
• x41 Thief's Instinct
• x56 Usurper's Scheme
• x58 Conqueror's Will
• x69 Arrow of the Demon Slayer
• x139 Arrow of the Starchaser
• 3 million Credits

Once again, this is leaked beta information, so Dr Ratio's materials could change upon his official release.

Honkai Star Rail Dr Ratio Eidolons

By getting duplicates of Dr Ratio from Warping on his Banner, you will receive his Eidolon. This material allows you to unlock Eidolon levels, with each upgrade either improving an existing attack or passive ability.

With beta information sourced from Project Yatta, here are all of Dr Ratio's Eidolons in Honkai: Star Rail:

• Pride Comes Before a Fall (E1): The maximum stackable count for the Trace 'Summation' increases by four. When a battle begins, Dr Ratio immediately obtains four stacks of Summation (You needs to unlock Summation first).
• The Divine is in the Details (E2): When his Talent's follow-up attack hits a target, for every debuff the target has, additionally deals additional Imaginary damage equal to 20% of Dr Ratio's attack. This effect can be triggered for a maximum of four times during each follow-up attack.
• Know Thyself (E3): Increases the level of Dr Ratio's Ultimate by two with a maximum upgrade level of 15, and increases the level of his Basic Attack by one, with a maximum upgrade level of 10.
• Ignorance Is Blight (E4): When triggering his Talent, Dr Ratio additionally regenerates 15 Energy.
• Sic Itur Ad Astra (E5): Increases the level of Dr Ratio's Skill and Talent by two, with a maximum upgrade Level of 15.
• Vincit Omnia Veritas (E6): Increases the trigger count for Wiseman's Folly by one, and the damage dealt by Dr Ratio's Talent follow-up attack increases by 50%.

Good luck levelling up Dr Ratio in Honkai Star Rail!