Neydahan

Neydahan is a Water/Fighting-type Pokémon introduced in Generation Neo-I.

It is not known to evolve into or from any other Pokémon.

Biology
Neydahan is a bottom-dwelling fish Pokémon with two massive, almost hand-like fins on either side. It uses these fins to crawl across the bottom of lakes and rivers, as well as to deliver powerful slaps to opponents.

Triva
Neydahan may be based off of a handfish, particularly the red Tasmanian handfish.

Neydahan may be a corruption of the phrase need a hand.