The move "Blast Burn". 5PP, 150 damage and 90 accuracy. Taught for free by the Old Man on Route 228. (Fight zone.)
you can probably get it Underground.
fire punch isn't a TM in platinum. There is a move tutor who will teach it to your Pokemon. it is the tutor on the route west of pastoria city
There is no Arcanine in Pokemon Platinum. You must find a Growlithe and evolve it with a fire stone. You can find Growlithe in Route 201 and 202 with Pokemon FireRed in your GBA slot.
you see all the Pokemon in platinum and trade from your other games like emerald, blue, fire red etc and that is how you find all Pokemon in platinum.
Magby is the baby version of the fire Pokemon Magmar. You can find one outside the ironworks in Pokemon Platinum.
You have to migrate it from Pokemon leafgreen,fire red, emerald, ruby or Sapphire
There are 18 Fire Attacks in Pokemon Diamond, Pearl and Platinum.
Its best if you have 1 fire Pokemon and 1 ground Pokemon.
I think Infernape,Rapidash, Flareon and Magmortar.
You dont You have to migrate from Fire Red or Leaf Green
If you have Fire Red in your DS, go to the Old Chateu.
There is magmar who is found at fuego ironworks.