Pokémon #605 in the National PokéDex, a Psychic type Pokémon.
Elgyem is a light blue extraterrestrial Pokémon with an oblong head with depressions on either side. It has black, symmetrical lines going down the front of its head. On the front of its head are shiny, green button-like eyes. Its hands have three finger-like digits: one red, one green, and one yellow. It has short, stubby legs and a small tail.
It evolves into Beheeyem.
Japanese Name: Ligray
Prior Pokémon: Eelektross
Next Pokémon: Beheeyem