Panta Rhei is an Event Warp for Dr Ratio for the second phase of Honkai: Star Rail Version 1.6. See the banner's release date, all character drops, and all light cone drops here.

Dr Ratio's Banner Release Date

Dr Ratio Banner Schedule

Dr. Ratio's banner (Panta Rhei) was available for the second half of version 1.6. The 4-star characters accompanying Dr Ratio were Sushang, Natasha, and Hook.

His Light Cone, Baptism of Pure Thought, was also available at the same time.

Version 1.6 Release Date and Banners Guide

Dr Ratio Banner Countdown for All Servers

Dr Ratio Banner Start and End Date for All Servers

Dr Ratio Banner Overview

Dr Ratio Warp Simulator

Panta Rhei

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Give it a shot!

Dr Ratio's Banner Gacha Rates

List of Characters in Dr Ratio's Banner

★5 Character Drops in Dr Ratio's Banner

★ Featured 5-Star Character ★
Dr. Ratio
Standard 5-Star Character Drops
Bailu	Bronya	Clara
Gepard	Himeko	Welt
Yanqing

There is a 50% chance to get Dr. Ratio as your first 5-star pull. If you get a different 5-star on this limited banner, your next 5-star pull is guaranteed to be Dr. Ratio.

All 5-Star Characters

★4 Character Drops in Dr Ratio's Banner

★ Featured 4-Star Characters ★
Hook	Natasha	Sushang
Standard 4-Star Character Drops
Arlan	Asta	Dan Heng
Herta	March 7th	Pela
Qingque	Sampo	Serval
Tingyun	Yukong	Luka
Lynx	Guinaifen	Hanya

All 4-Star Characters

List of Light Cones in Dr Ratio's Banner

★5 Light Cones in Dr Ratio's Banner

There are no 5-Star Light Cones available in Dr Ratio's Banner. Check out our list of 5-Star Light Cones and their effects here!

All 5-Star Light Cones

★4 Light Cones in Dr Ratio's Banner

4-Star Light Cone Drops
Make the World Clamor	A Secret Vow	Planetary Rendezvous
Swordplay	Landau's Choice	Eyes of the Prey
Shared Feeling	The Birth of the Self	The Moles Welcome You
Memories of the Past	Only Silence Remains	Day One of My New Life
Good Night and Sleep Well	Post-Op Conversation	Geniuses' Repose
Under the Blue Sky	Subscribe for More!	Dance! Dance! Dance!
Resolution Shines As Pearls of Sweat	Perfect Timing	Trend of the Universal Market
Indelible Promise	Concert for Two	Boundless Choreo

All 4-Star Light Cones

★3 Light Cones in Dr Ratio's Banner

3-Star Light Cone Drops
Sagacity	Mediation	Hidden Shadow
Pioneering	Mutual Demise	Multiplication
Adversarial	Passkey	Meshing Cogs
Loop	Defense	Shattered Home
Fine Fruit	Darting Arrow	Data Bank
Chorus	Void	Amber
Collapsing Sky	Cornucopia	Arrows

All 3-Star Light Cones

Honkai: Star Rail Related Guides

All Gacha (Warp) Banners

List of Current Gachas (Warps)

All Current Gacha (Warps)
Sunday Banner (Ver. 2.7 Phase 1)	Brilliant Fixation (Ver. 2.7 Phase 1)
Jing Yuan Banner (Ver. 2.7 Phase 1)	Bygone Reminiscence (Ver. 2.7 Phase 1)
Stellar Warp	Departure Warp

List of Upcoming Gachas (Warps)

Upcoming Gacha (Warps)
Fugue Banner (Ver. 2.7 Phase 2)	Brilliant Fixation (Ver. 2.7 Phase 2)
Firefly Banner (Ver. 2.7 Phase 2)	Bygone Reminiscence (Ver. 2.7 Phase 2)
The Herta Banner (Ver. 3.0 Phase 1)	Aglaea Banner (Ver. 3.0 Phase 2)

Gacha (Warp) Banner Guides

Other Gacha (Warp) Banner Guides
Best Warp Banners	Warp Banner History
Pity System Explained