Breed Magmar or Magmortar, Global Trade Station.
There are no wild Magbys.
You can catch Magby by Feugo Ironworks.
you can't get him you can get a magmar.
Magby is the baby version of the fire Pokemon Magmar. You can find one outside the ironworks in Pokemon Platinum.
Of course, throwing Pokéball at it...
It can be found on a wild Magby, or on Route 214 in Pokemon Platinum
it evolves by happiness in every game its in.
It evolves at level 30.
A breeder has one on route 210
You can't. On Diamond, Pearl and Platinum there is a 5% chance that Magby will hold the Magmarizer.
Route 210 (South) - Pokemon Breeder Amber
you might mean magby. You can go to Fuego Ironworks and you can find a magmar. you can breed it and get a magby egg.
you need to finde a wild magby in route 214 http://www.serebii.net/platinum/items.shtml