Shedinja

Shedinja is a dual-type Bug/Ghost Pokémon.

It is considered a special evolution of Nincada, appearing only when Nincada evolves into Ninjask starting at level 20, as long as there is an extra space in the player's party and an extra Poké Ball in the player's bag.

Biology
Shedinja is a Pokémon based on a cicada's shed exoskeleton. Most of its body is light brown, but the abdomen is gray. It has four protrusions on its underside instead of legs; the top pair is brown, while the lower is gray. There are round protrusions on the side of its head with narrow slits for eyes. Two lines encircle its abdomen and a white halo floats above its head. On its back is a pair of tattered wings divided into three wingtips. A hole between its wings reveals that its body is completely hollow and dark, as it possesses no internal organs.

It is said that looking into this empty space will steal one's spirit. Its shell is very hard, which gives it strong defense but renders it incapable of movement. It does not breathe and floats without moving its wings. It lives in tropical and temperate forests.