How to evolve Slowpoke in Cobblemon.
Slowpoke evolves into Slowbro when it reaches level 37.
Slowpoke evolves into Slowking when traded to another player, or when you use a link cable on it while holding a King's Rock.
Evolution line
What Slowpoke needs
2 paths
SlowbroLevel up
Level 37
SlowkingLink cable or trade
Holding King's Rock
Moves it learns on evolving
Withdraw
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Slowpoke nowwaterpsychic315
Slowbrowaterpsychic490
Slowkingwaterpsychic490
Base stat totals, from the Cobblemon 1.7.3 species files.