Level 25.
Level 20.
Find a Marill in the wild and evolve it into an Azumarill. I think Marill evolves around level 25. marill evolves at level 18 in sapphire
lvl 20
Marill will evolve to Azumarill at level 18
Marill evolves into Azumarill at level 18.
Marill does not need a evolutionary stone to evolve into Azumarill. Marill will naturally evolve into Azumarill at level 18.
level 18
Marill evolves into azumarill at level 18
Marill evolves into Azumarill at level 18.
Marill evolves at level 18
level 18
Marill evolves into Azumarill at level 18.