Well first you need to get a Magby which are located at Stark Mountain, then evolve it to a Magmar at level 30.
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
Magby requires Level 30 to evolve into Magmar and then trade it while holding the Magmarizer to evolve Magmar into Magmortar in Pokemon Diamond/Pearl. Magby can be found on Route 227 in Pokemon Diamond.
sorry there is no way to evolve magmar you have to have a diamond or pearl version also Pokemon girintina.
well there's two diamond and pearl an Pokemon ranger i would go with diamond and pearl
you can evolve it diamond pearl platinum and later but Pokemon games before Pokemon emerald you can't. but to it evolve get a manimizer and give it to magmar and then trade it.
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.
Migrate it.
In Pokemon Diamond and Pearl the magmariser can be found on wild magby. Magby can be obtained at Stark Mountain, when Pokemon Leaf Green is inserted into the bottom of the DS. In Pokemon Platinum the magmariser can be found on route 214 and on wild magmar. Magmar can be found at the Fuego Ironworks. In Pokemon Heart Gold and Soul Silver you obtain it in Cinnabar Island by using Rock Climb.
Get the Magmarizer and let Magmar hold it. Then trade Magmar. In Diamond, it is hard to get a Magmarizer, but in Pearl, it is SO easy. Just catch a Magby or a Magmar. They will be holding it if you are lucky. You will get a 50% chance of a Magby/Magmar holding it. See Serebii.net for more details.
there are 150 kinds of Pokemon that you can see and/or obtain. Unless you have friend trade you Pokemon that you can only get in pearl to you, you'll never obtain them all. In Pokemon diamond and pearl all you have to do is see the Pokemon and you get its data unlike the older versions where you have to obtain them.
darkrai and arcus
Milktank is located in route 209 and 210 in both Diamond and Pearl.