Elgyem is an extraterrestrial Pokémon, has an oblong, gray 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, button-like eyes. Elgyem's hands have three finger-like digits, and they are red, green, and yellow. It has short, stubby legs and a small tail.
Elgyem is an extraterrestrial Pokémon. Since suddenly appearing in the desert 50 years ago through unknown means, they have since made their home in the Celestial Tower in north-western Unova. Elgyem controls incredible psychic power. It squeezes its opponent’s brains with psychic power, causing them headaches.