Marill evolves into Azumarill at level 18.
It doesn't.
It will evolve at level 7.
You level him up one more time then he will evolve!
Train it to level 25.
mine evolved at level 18
Marill evolves into azumarill at level 18
Marill evolves at level 18
Marill evolves into Azumarill at level 18.
Marill evolves into Azumarill at Lv 18.
Marill evolves into Azumarill at level 18.
Level 18
lvl 20
Evolve Marill @ level 18.
Evolve Marill in level 18 (i think)
Marill will evolve to Azumarill at level 18
Marill, the Pokemon from the Kanto region, evolves into Azumarill at level 18. Marill did not have this evolutionary form until the Johto region.
you have to trade it to evolve.