Marshadow

Marshadow (マーシャドー) is a /-type Mythical Pokémon introduced in Generation VII.

Physiology
It resembles a shadow and has a wispy figure.

Natural abilities
Marshadow likes to stay hidden from people making it unknown to humans and making most people think that it is a myth.

By Tutoring
Marshadow doesn't know moves by tutoring.

Origin
Marshadow is based on a shadow.

Etymology
Marshadow's name come from martial arts by its type, and shadow.