How to evolve Feebas in Cobblemon.
Feebas evolves into Milotic when traded to another player, or when you use a link cable on it while holding a Prism Scale.
Evolution line
What Feebas needs
1 pathMiloticLink cable or trade
Holding Prism Scale
Moves it learns on evolving
Water Pulse
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Feebas nowwater200
Miloticwater540
Base stat totals, from the Cobblemon 1.7.3 species files.