You migrate it from Pokemon Ruby or Emerald. You can evolve it into a Shiftry with a Leaf Stone. They're very rare but in Ruby you can catch them on Route 114.
you have to have ruby in the GBA gameslot or trade or transfer to get a nuzleaf, if you do the gameslot way you go to route 229
lots of people like pok'emon but lots of peoples like you like Pokemon diamond and pearl but how to get nuzleaf.up your but to the right.
Pal Park (Nuzleaf can be caught on Route 114 in Ruby)
In Pokemon Diamond, Pearl, and Platinum, Gloom, Weepinbell, Exeggcute, and Nuzleaf all evolve from using the Leaf Stone.
Gloom Nuzleaf There may be more....
The Pokémon that will evolve once you use a Leaf Stone on it would include Nuzleaf into Shiftry, Exeggcute into Exeggutor and Gloom into Vileplume.
Nuzleaf doesn't evolve in a certain level, you have to use a Leaf Stone on it and then it evolves into Shiftry.
trade diamond from Pokemon diamond onto Pokemon pearl
Here are all the Dark-type Pokemon in Diamond and Pearl (in the National Dex): * Absol * Cacturne * Carvanha * Crawdaunt * Darkrai * Drapion * Honchkrow * Houndoom * Houndour * Mightyena * Murkrow * Nuzleaf * Poochyena * Sableye * Sharpedo * Shiftry * Skuntank * Sneasel * Spiritomb * Stunky * Tyranitar * Umbreon * Weavile
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
some Pokemon you use a leafstone on are nuzleaf, execute,gloom, and victrebell
THE POKEMON THAT ARE NOT FOUND IN DIAMOND AND PEARL ARE:MANAPHY PHIONE