Hellish Axolotl
The Hellish Axolotl is a MYTHICAL pet that is obtainable from the Shiny Axolotl Egg, with a 0.0005% base chance of hatching. The Shiny Axolotl Egg can be found in the Deep Axolotl Ocean.
The latest Pet Simulator X value list for Hellish Axolotl can be found below:

Regular
💎 3,200,000 (3.2m)

Golden
💎 9,000,000 (9m)

Rainbow
💎 40,300,000 (40.3m)

Dark Matter
💎 123,700,000 (123.7m)