- The Purgatorial mutation increases a fish's selling value by 11.2x in Fisch.
- It can only be obtained using the Black Fairy Rod.
- The rod has a 20% chance of applying the Purgatorial mutation normally, or 33% during Soul Judgement.
The Purgatorial mutation is a limited mutation added to Fisch in Version 2.08.0. It multiplies a fish’s selling value by 11.2x. In this guide, learn how to get the Purgatorial mutation in Fisch and increase your chances of catching it.
| Purgatorial Mutation Details | Information |
|---|---|
| Obtainment | Black Fairy Rod |
| Multiplier | 11.2x |
| Limited | Yes |
| Appraisable | No |

How to Obtain Purgatorial Mutation in Fisch
There is currently only one way to obtain the Purgatorial mutation in Fisch. You need to use the Black Fairy Rod in Fisch, which has a chance of applying the Purgatorial mutation to caught fish.
The rod is only available after you complete the Draven’s Questline from the underground music venue in Fisch. Once you have the stage 10 Black Fairy Rod, here is how it works and the chances of getting the mutation:
- Normal Chance: The Black Fairy Rod has a 20% chance of applying the Purgatorial mutation to caught fish.
- Soul Judgement Passive: The chance increases to 33% when the Black Fairy’s Soul Judgement passive activates. Hit the center of the Soul Judgement mechanic to receive the bonus.

Tips and Tricks to Get Fisch Purgatorial Mutation Fast
Getting the Purgatorial mutation in Fisch depends on the Black Fairy Rod’s passive abilities. Here are some tips to make the process easier:
- Use Soul Judgement: The Black Fairy Rod’s Soul Judgement passive increases your Purgatorial mutation chance from 20% to 33%. Make sure to hit the center of the mechanic when it appears.
- Keep Fishing: The mutation has a 20% base chance, so keep catching fish until you get the desired result. Take advantage of every Soul Judgement activation to improve your odds.
- Target High-Value Fish: Purgatorial increases a fish’s selling value by 11.2x. Use the rod in Fisch locations where you can catch expensive fish to make the most of the multiplier.
- Use the Black Fairy Rod’s Other Passives: The rod also has a 45% chance to release one to four Souls while catching a fish. Each Soul provides additional C$ based on the fish’s value, giving you another way to earn money while hunting for Purgatorial.

That is how you can get the Purgatorial mutation in Fisch. Have you managed to catch a Purgatorial fish yet? Let us know in the comments.
The Purgatorial mutation increases a fish’s selling value by 11.2x, making it one of the most valuable mutations in Fisch.
No, Purgatorial is not appraisable and can only be obtained using the Black Fairy Rod.
