Honkai Star Rail Dr. Ratio - abilities, traces, eidolons, and leaks

One of the future characters, Honkai Star Rail Dr. Ratio, is creating quite a stir in the HoYoverse community with his amazing abilities and captivating charm.

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Honkai Star Rail Dr. Ratio 

Fans of Honkai: Star Rail have been posting leaks about the much-awaited version 1.6 on Reddit for the past few months, providing an early look at the stuff that will be available. According to HoYoverse, the HSR 1.6 banner will add Ruan Mei, Dr. Ratio, and Xueyi to the cast of playable characters.

It's speculated that Ruan Mei, who uses the Ice element, is a five-star Harmony character, and that Xueyi will be a four-star rarity. As an imaginary unit, however, will be Dr. Ratio. Like Seele and Topaz, he will continue on The Hunt's path. Due to the abundance of strong DPS characters currently playable in the game, Dr. Ratio will have intense competition as a Hunt unit.

Our post here is dedicated to Honkai Star Rail Dr. Ratio for those who are curious about him and want to know if it's worth saving your Stellar Jades for his banner.

Who is Dr. Ratio in Honkai Star Rail?

Dr. Ratio is a 5-star playable character from the Path of The Hunt in Honkai Star Rail, according to recent leaks. One of the seven Types in Honkai Star Rail, the Imaginary element, is the power he wields.

Given that Dr. Ratio is among the universe's most brilliant beings, his explanation and imagery line up flawlessly. He has a sophisticated model by HoYoverse that adheres to the character's general style. Since his early years, Dr. Ratio has been a bright prodigy, and he is certain that intelligence and creativity are not limited to geniuses, according to the Honkai Star Rail's official Twitter account.

Also, Dimbreath has released gameplay footage of Dr. Ratio using a book as his primary weapon and walking on the Hunt Path to deliver strong single-target attacks. The majority of his ability animations have some connection to geometry. This includes his Ultimate, in which he calls forth a huge building and then precisely angles it to crash on an enemy.

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Official Honkai Star Rail Dr. Ratio splash art

Honkai Star Rail Dr. Ratio Abilities

Among the upcoming playable characters in Honkai Star Rail that have leaked is Dr. Ratio, whose whole character kit has been made public.

HSR Dr. Ratio Basic Attack – Mind is Might

Deals Imaginary DMG equal to 50% of Dr. Ratio’s ATK to a single enemy.

HSR Dr. Ratio Skill – Method of Cognitive Enhancement

Triggers Talent effect 1 time. Every debuff the target has additionally triggers the Talent once, up to a max of 4 times. Then, deals Imaginary DMG worth 75% of Dr. Ratio’s ATK to the target.

HSR Dr. Ratio Ultimate – Three-Step Paradox

Deals 144% of Dr. Ratio’s ATK in Imaginary DMG to a target enemy unit, causing Folly of Sages. Allies attacking targets affected by Folly of Sages give Dr. Ratio an extra 30% fixed chance to launch a Talent follow-up attack. Folly of Sages stacks up to 2 times, and unleashing your Ultimate resets the trigger count for a follow-up attack. Folly of Sages only affects the most recent target of Dr. Ratio’s Ultimate.

HSR Dr. Ratio Talent Cogito Ergo Sum

Randomly gain 1 of 5 buffs: Launches a follow-up attack on the enemy target if not eliminated or on a random enemy target if eliminated, dealing Imaginary DMG equal to 160% of Dr. Ratio’s ATK. This effect can only be triggered once per attack. Increases ATK by 6.0%; stacks up to 3 times. Increases CRIT Rate by 2.0%; stacks up to 3 times. Increases CRIT DMG by 6.0%; stacks up to 3 times. Increases SPD by 2.5%; stacks up to 3 times. Buff effects last for 3 turns.

HSR Dr. Ratio Technique – Mold of Idolatry

After using Technique, creates a special dimension that Taunts nearby enemies, lasting 10 second(s). After entering battle with enemies in the dimension, there is a 100% base chance to inflict 15% SPD Reduction on enemies for 2 turn(s). Only 1 dimension created by allies can exist at the same time.

Honkai Star Rail Dr. Ratio Traces

Dr. Ratio possesses the following known Traces based on leaked data:


  • When Dr. Ratio is on the field, all allies deals 10% more DMG to debuffed enemies.


  • When allies attack a target affected by Folly of Sages, the trigger rate for Talent’s follow-up attacks is increased by 8% for every debuff effect on the target, up to a maximum of 40%.


  • When Skill is used to attack a target, there is a 100% base chance to reduce the attacked target enemy’s Effect RES by 10% for 2 turn(s).

Honkai Star Rail Dr. Ratio Eidolons

Dr. Ratio has several Eidolons with unique effects:

E1 – The Calamity of Arrogance:

Gains buffs equal to that provided by the Talent at the start of the battle. Receive 2 stack(s) for each type of buff. The Talent’s buff stacks increase by 2 stacks and increase its duration by 1 turn(s).

E2 – Minuscule Yet Profound:

After the follow-up attack from his Talent hits a target, deals Additional Imaginary DMG equal to 20% of Dr. Ratio’s ATK for every debuff currently on the enemy target. 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 – With Ignorance Comes Folly:

Each time a skill is buffed, Dr. Ratio gains an additional 3 Energy.

E5 – Adrift in Vastness:

Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.

E6 – The Truth Eternal:

Increases trigger effect for Folly of Sages an additional 1 time(s), plus increases DMG of Talent’s follow-up attacks triggered by 50%.

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Honkai Star Rail 1.6 Banners and Characters Revealed

HSR Dr. Ratio Light Cone

The official artwork for Dr. Ratio's signature Lightcone, Baptism of Pure Thoughts, has leaked. It will appear in the Honkai Star Rail 1.6 weapon banner alongside the character. Also, in the second half of the patch, we will see Kafka's signature, the 5-star Lightcone "Patience is all you need," if the datamined information regarding the event warps is accurate.

The following is a synopsis of what the leaks indicate Dr. Ratio's Lightcone in Honkai Star Rail will do:

  • Max HP: 953
  • Max Attack: 582
  • Max Defense: 529

Ability (Mental Training): "Increases CRIT DMG for the wearer. Deals an additional CRIT DMG to the enemy for each debuff sustained, up to a maximum of 3 stacks. Grants Debate effect. When attacking the target with an Ultimate, increasing follow-up attack damage and ignoring a percentage of the target DEF. This effect lasts for 2 turns."

Honkai Star Rail Dr. Ratio Release Date

Dr. Ratio's expected release date aligns with Honkai Star Rail Patch 1.6, speculated to launch around December 20, 2023, introducing three new characters. However, precise timing remains uncertain and subject to change.

Leak insights suggest additional upcoming characters like Screwllum, Aventurine, and Robin, indicating Dr. Ratio's immediate release might not be on the horizon. Remember that release dates sometimes change, so it's best to rely on miHoYo's official announcements for up-to-date information.


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