The Magmarizer is held by wild Magby in Pokemon Diamond. To get wild Magby to appear you need a copy of Pokemon LeafGreen in the GBA slot of the DS. After doing this wild Magby should start to appear on Route 227 and Stark Mountain.
no you can't find a torchic egg in Pokemon platinum
You cannot find zekrom in pokemon platinum
You can't find rayquaza in pokemon platinum.
go on Pokemon Platinum Walkthrough you'll might get the idea.
I think you have to find a special pokemon
the only steel type in ptd is magnamite and magneton
evolve from magnamite
Swarm in Fuego Ironworks
Electabuzz, Voltorb and Magnamite can be found in the Powerplant alone with Zapdos. They're powerful (especially Electabuzz) and Voltorb can be evolved into Electrode; an explosive Pokemon. Magnamite can evolve into Magnatone, and if transfered to other games, a Magnazone.
buy the Pokemon platinum book
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
no you can't find a torchic egg in Pokemon platinum
try your best to find spirtomb in Pokemon platinum
There is not a route 233 on Pokemon platinum.
You cannot find zekrom in pokemon platinum
you find them in the cave
there is no such Pokemon