How to evolve Magikarp in Cobblemon.
Magikarp evolves into Gyarados when it reaches level 20.
Evolution line
MagikarpWhat Magikarp needs
1 path
GyaradosLevel up
Level 20
Moves it learns on evolving
Bite
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Magikarp nowwater200
Gyaradoswaterflying540
Base stat totals, from the Cobblemon 1.7.3 species files.