Marshadow

Sun: Able to conceal itself in shadows, it never appears before humans, so its very existence was the stuff of myth.

Moon: It lurks in the shadows of others, copying their movements and powers. This Pokémon is craven and cowering.

Ultra Sun: It slips into the shadows of others and mimics their powers and movements. As it improves, it becomes stronger than those it’s imitating.

Ultra Moon: It sinks into the shadows of people and Pokémon, where it can understand their feelings and copy their capabilities.

Sword: By slipping into the shadow of a martial arts master and copying their movements, this Pokémon learned the ultimate techniques.

Shield: This Pokémon can conceal itself in any shadow, so it went undiscovered for a long time.