Dr Ratio is a 5-Star Imaginary character of The Hunt path who debuted in Honkai: Star Rail during version 1.6. You need to use Dr Ratio Ascension materials to upgrade ...

Anaxa (Wind, Erudition) Dr Ratio (Imaginary, Hunt) Dr Ratio has a chance of delivering a follow-up attack to enemies, and that chance increases if they have debuffs. His ultimate also marks them ...