Rotom doesn't evolve, it changes forms. You can make it change forms by using the secret key in the Galactic Eterna building's first floor in the upper left-hand corner.
Note: you must use it on the strange machine in the corner, and not on Rotom.
You need the Secret Key. You can get it over the Wifi as a gift, or there is a code for action replay, too. Then when you have it go to the team galactic hideout with the three trees at the entrance, right outside of the forest. I think its Eterna city???? Then you go to the back left wall and hit the action button. A doorway will appear and inside will be the objects to allow Rotom to evolve.
Arbok does not evolve
Its Phione in Pokemon Platinum, You can get it by breeding a Manaphy and a Ditto Actually; Rotom comes after Manaphy in the Platinum pokedex. Kthnx. http://pokemon.marriland.com/platinum/pokedex/list/sinnoh/ Rotom comes after manaphy in the platinum pokedex phione can be made by breeding a manaphy and a ditto but he's actuelly not in the platinum pokedex :D
you need to trade it for it to evolve
I'm assuming you mean electrizer. you get one by catching rotom in a TV in the mansion in eterna forest. rotom will be holding one.
only once unless you erace your game
you can't rotom has five different forms, which are only in platinum, with an event.
Rotom cannot be evolved
rotom doesnt evolve but does change form in platinum.
Pokemon event
rotom
No trainer have Rotom in Pokemon Pearl, Diamond, or Platinum.
No.
in the mansion that has gastly
To encounter Rotom in Pokemon Platinum, check the TV in the Old Chateau at night.
after rotom you should have beaten the gameYou have to trade rotom from Pokemon diamond or gold.you dont you trade it from platinum diamond or peralYou cannot catch Rotom in SoulSilver. You need to trade from Diamond, Pearl or Platinum.
Rotom.
The 152 Pokemon in the Pokedex is Rotom, not the other Rotom's just electric Rotom