it doesn't. magmortar is not in any games until diamond and platinum, which came out after fire red and leaf green.
You can evolve a Magmar in Diamond, Pearl and Platinum by trading it while it's holding a Magmarizer. However, Magmar cannot evolve in Pokemon firered and Leafgreen.
Magmar does not evolve at any specific level. Magmar evolves when traded with a magmorizer. Magmar will evolve into a Magmortar if you trade it to someone else while it's holding a magmorizer.
Level 30 or higher.
-100
You give magmar a magmarizer and trade it. you can evolve it at any level.
Level it up to lv. 30 to evolve into Magmar
magmar dosent evolve by level it evolves by giving it a magmarizer (i think that is what it is called) and then trading it.
To get Magmar to evolve you have to trade it while it is holding the Magmarizer item.
Magmar does not evolve by level, but by trading it to another player while it is holding a magmarizer. It will evolve into a magmortar.
The only way you can evolve magmar is to trade it while its holding a magmarizer, it will never level by leveling it up.
Level 40.It will evolve at level 40.
Magby evolves at level 30 and into magmar