Glitched Immortuus
The Glitched Immortuus is a MYTHICAL pet that can be hatched from the Glitch Egg with a ~ 0.0002% hatch rate. It is the only βImmortuusβ pet that is MYTHICAL.
The latest Pet Simulator X value list for Glitched Immortuus can be found below:

Regular
π 8,000,000 (8m)

Golden
π 19,600,000 (19.6m)

Rainbow
π 32,000,000 (32m)

Dark Matter
π 69,000,000 (69m)