Honkai: Star Rail – Dr. Ratio Best Builds & Teams

In a delightful twist for Honkai: Star Rail enthusiasts, the formidable Dr. Ratio is now available for free to players entering the game within a specified window as a gift for Star Rail winning “Mobile Game of the Year” at the Game Awards. Contrary to expectations for free characters, Dr. Ratio proves to be a potent single-target unit, excelling in the Hunt role. Building him effectively is key to unlocking his true potential.

Meet Dr. Ratio in Honkai: Star Rail, a character on a mission to enlighten the universe and obliterate ignorance. This article explores the optimal Dr. Ratio build, covering the best Light Cones, Relics, and recommended teams. Whether you seek to maximize damage output or assemble the ideal team, we’ve got you covered for mastering this powerful character in the game.

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How to Get Dr. Ratio

You can claim the limited 5-star Imaginary Hunt Character Dr. Ratio for free via your Mailbox from January 17, 2024, until the end of Version 2.1 (i.e. February 5-6, 2024)

Dr. Ratio’s Best Builds

Best Relic and Ornament Stats

Main Stats		Sub Stats
Body: CRIT Rate / CRIT DMG Feet: SPD or ATK% Sphere: Imaginary DMG Rope: ATK%		CRIT DMG ★★★ CRIT Rate ★★★ ATK% ★★ SPD ★★

Best Dr. Ratio Build

Light Cone: Baptism of Pure Thought (Dr. Ratio’s Signature Light Cone)
Relic Set: 4pc. Wastelander of Banditry Desert
Ornament Set: 2pc. Inert Salsotto (Simulated Universe: World 6)

Dr. Ratio’s best build is fairly simple: Wastelander of Banditry Desert will increase his CRIT Rate and CRIT DMG when the enemy is debuffed or imprisoned. As long as there is a debuffer on the team, the 4pc. effect will be applied consistently.

Inert Salsotto’s Ultimate and Follow-up Attack DMG will increase as long as he has at least 50% CRIT Rate, which should be easy to achieve given his unlockable Traces.

Best Alternative Dr. Ratio Light Cones

5★ Worrisome, Blissful (Topaz & Numby’s Signature Light Cone)
5★ In the Night (Seele’s Signature Light Cone)
5★ Sleep Like the Dead (Starlight Exchange & Gacha)
5★ Cruising in the Stellar Sea (Herta’s Store)
4★ Swordplay (Gacha)
4★ Only Silence Remains (Gacha)
4★ River Flows in Spring (Echo of War & Forgotten Hall)
4★ Return to Darkness (Battle Pass)

Best Alternative Dr. Ratio Relic Sets

2pc. Wastelander of Banditry Desert + 2pc. The Ashblazing Grand Duke
2pc. Wastelander of Banditry Desert + 2pc. Musketeer of Wild Wheat

Best Alternative Dr. Ratio Ornament Sets

2pc. Firmament Frontline Glamoth (Simulated Universe: World 8)
2pc. Space Sealing Station (Simulated Universe: World 3)

Dr. Ratio Trace Priority

Talent: The majority of Dr. Ratio’s DMG will come from his follow-up attacks. Dr. Ratio’s follow-up attack DMG will increase as his Talent is upgraded.
Ultimate: Upgrading Dr. Ratio’s Ultimate simply increases its damage output. This inflicts a massive amount of damage on an enemy.
Skill: Upgrading Dr. Ratio’s Skill only increases its DMG. If Dr. Ratio’s Ultimate has not yet been activated, this is his go-to Trace.
Basic Attack: Dr. Ratio’s Basic ATKs can be left out because his Skill deals significantly more DMG.

Dr. Ratio Recommended Eidolons

We don’t recommend getting eidolons for 5★ characters as you can clear the majority of the game’s content with them at E0. But if you still want the maximize your character’s potential, we recommend getting the E1 and E2 eidolons as they provide the most value for your money. His E1 increases his Crit. Rate and Crit. Damage against debuffed enemies, and his E2 makes his Follow-up Attacks’ deal additional damage depending on the amount of debuffs the enemy has.