In JN026, Goh discovered that Magikarp had grown very fat over its time at the Cerise Laboratory. To fix this, Goh trained Magikarp to compete in the Magikarp High Jump Tournament. During the tournament, Magikarp was able to make it to the semifinals, where it defeated Koi Kingen's Magikarp with a jump of 21.02 meters, breaking Goh's personal record in the process. In the finals, it competed against Kasuking's Shiny Magikarp. Before the finals began, Magikarp was revealed to have had two immensely heavy weights on its back fin. With the weights gone, it jumped so high it didn't come back. As such, its jump could not be measured, losing Goh the tournament. At the end of the episode, it crashed back down on Ash and Goh while they were on Slowpoke Island.
In JN031, Magikarp, alongside Goh's Goldeen, befriended Nami's Feebas, nicknamed Hi-chan. It later helped Hi-chan learn how to swim and jump better.
Personality and characteristics
As a giant Pokémon, Magikarp is exceptionally larger and stronger than other members of its infamously weak species. Its Splash, a normally useless move in its own right, allows it to jump so high it exits the atmosphere, and it can send opponents flying as it returns to the ground. Magikarp can be very motivated when it has a goal to strive towards.
Goh's Magikarp is very receptive to other Pokémon, welcoming Hi-chan and later Goh's newly captured Pyukumuku.
A † shows that the move was used recently, unless all moves fit this case or there are fewer than five known moves.
Trivia
The Magikarp being giant and being referred to as the "Lord" is a reference to Pokémon Platinum, where it is possible to find level 100 Magikarp in the Resort Area via fishing.
Related articles
For more information on this Pokémon's species, see Magikarp.