Shiny Elgyem may be one of the most mysterious, elusive Pokemon in Pokemon GO—so much so that it may not exist.
Not much is known about Elgyem—even by Niantic Labs' standard. This Pokemon is said to be a real-life extraterrestrial that crash-landed in the deserts of the Earth about 50 years ago. It was originally introduced with Generation V and is said to have so much raw psychic power that it can "squeeze its opponent's brain" to cause intense headaches. Some PokeDex entries state that if it stands too close to a television, the screen will show strange images that are allegedly from its home.
Shiny Elgyem Pokemon GO: How to Catch
Unfortunately, Elgyem's shiny variant has yet to be released in Pokemon GO. Elgyem, itself, has only been in Pokemon GO for a little over seven months—and even then it's rarely seen. It was originally introduced in August 2020 and its most recent egg distance group was 5 k.m.
Shiny Elgyem would likely be difficult to tell apart from a typical Elgyem as the only true change is the color of its eyes and bumps on its hands. The placement of teal and magenta switch places making its magenta eyes the most significant difference.
This Pokemon isn't anything special combat-wise. Its highest CP total is just over 1500 and none of its stats break 150.
Elgyem is a pure psychic-type typically found in the Unova region. Trainers can prompt to evolve into Beeheeyem using 50 candies. It is also known as the "Cerebral Pokemon"—likely for its powerful mind—and its PokeDex number is 605.