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Dr Ratio debuted in Honkai: Star Rail version 1.6, but aside from his Traces, he uses materials that have always been present in the game. This means that building him should be fairly simple, as most players probably have an abundance of what he needs on hand.
Ascension Materials You’ll Need for Dr Ratio in Honkai: Star Rail
Ascension 1
- 5 Thief’s Instincts
- 4000 Credits
Ascension 2
- 10 Thief’s Instincts
- 8000 Credits
Ascension 3
- 6 Usurper’s Schemes
- 3 Suppressing Edicts
- 16,000 Credits
Ascension 4
- 9 Usurper’s Schemes
- 7 Suppressing Edicts
- 40,000 Credits
Ascension 5
- 6 Conqueror’s Wills
- 20 Suppressing Edicts
- 80,000 Credits
Ascension 6
- 9 Conqueror’s Wills
- 35 Suppressing Edicts
- 160,000 Credits
You can get Dr Ratio Ascension Materials like Usurper’s Scheme from enemies such as Voidranger: Distorter, Baryon, and Voidranger: Trampler. You can find these enemies in Herta Space Station. They’re also a material you can get through Assignments. As for Suppressing Edicts, they’re drops from Stagnant Shadow: Shape of Puppetry. You can find this boss in the Artisanship Commission on the Xianzhou Luofu.
In total, if you want to fully build your Dr Ratio, you will need: 15 Thief’s Instincts, 15 Usurper’s Schemes, 15 Conqueror’s Wills, 65 Suppressing Edicts, and 308,000 Credits.
Here’s How to Level Up Dr Ratio’s Traces
To fully level up a Trace for Dr Ratio, excluding his Basic Attack, you’ll need:
- 3 Arrows of the Beast Hunter
- 15 Arrows of the Demon Slayer
- 30 Arrows of the Starchaser
- 9 Thief’s Instincts
- 13 Usurper’s Schemes
- 7 Conqueror’s Wills
- 3 Past Evils of the Borehole Planet Disaster
- 2 Tracks of Destiny
- 652,500 Credits
You can get Past Evils of the Borehole Planet Disaster from the Echo of War: Borehole Planet’s Old Crater challenge. It’s accessible from the Seclusion Zone on Herta Space Station. When you’re leveling up Dr Ratio’s Traces, try to prioritize his Talent. While his Skill and Ultimate are both very useful and you should certainly level them up, the bulk of Dr Ratio’s utility comes from his follow-up attack.
Honkai: Star Rail is readily available on the PS5, Windows PC, and mobile devices. Between Versions 1.6 and 2.1, players can get Dr Ratio for free. He is also in the gacha, but you can only pull for him while the “Panta Rhei” Character Event Warp is active.
