Evolve Marill @ level 18.
Azumarill doesn't evolve according to level in Pokémon HeartGold because it's not capable of evolving at all.
listen to the radio the oak and Mary show and it will apear in a swarm one day
Azumarill is a Water type pokemon.
you evolve a marill into azumarill
Marill evolves at level 18
Yes it is. Azumarill is quite popular among other Pokemon. Recently, many other Poke Fans are using Azumarill in there Poke Teams. Infact, I use Azumarill in my team as well. Azumarill is a good Pokemon! ^_~ Lol yea its ok. :) and if you're looking at strength it does better than some. =)
it doesn't the stages are azurill marill azumarill
You can't you must train marill to get azumarill.
Azumarill, and none of its unevolved forms, can lern Ice Beam through level up, however, they all can learn it through a TM, depending on which version you're playing. In Diamond, Pearl, Platinum, HeartGold, and SoulSilver, it's TM13, which can be bought at the Veilstone Game Corner (Diamond, Pearl, Platinum), or Goldenrod Game Corner (HeartGold, SoulSilver) for a massive 10000 coins.
evolve maril
azumarill
Azumarill is #184 in the national pokedex, and it is a Water-Fairy type Pokemon.