Stunfisk

Maggyo is a --type Pokemon that appears in the Generation V games Pokemon Black and White. Maggyo does not evolve from or into any known Pokemon.

Trivia

 * Even though it is /, it can learn the -type move Muddy Water, which may be due in part by the fact that said move has the word "Muddy" in its name and the fact that Maggyo resembles a fish.
 * Maggyo is the first Pokemon that has the typing of Ground/Electric.