Get a Haunter and trade it with a friend in the Union Room, then it will evolve into Gengar if it doesn't have an everstone.
You trade Haunter to another Diamond, Pearl, or Platinum version and it will evolve into a Gengar. You will need to trade back to your original Diamond game to get the Gengar. Hope I helped, bye
You have to trade to another game to make it evolve.
you can trade it at the guy at snowpoint city
Gastly evolves to Haunter at level 25. Then, Haunter evolves into Gengar by being traded.
Get a Haunter and trade it with a friend in the Union Room, then it will evolve into Gengar if it doesn't have an everstone.
Gahstly will evolve at lvl25 to Haunter then trade haunter to evolve to a Gengar.
he evolves by trading him
None!
You trade Haunter to another Diamond, Pearl, or Platinum version and it will evolve into a Gengar. You will need to trade back to your original Diamond game to get the Gengar. Hope I helped, bye
No it won't Haunter only evolves when you trade across to a similar game, you have to trade it to Leaf green for it to evolve. It will migrate to Pokemon platinum and will stay as a haunter. To evolve it to a Genger on platinum, you must trade it to another platinum, diamond or pearl
You have to trade to another game to make it evolve.
snesel can'NT evolve but can evolve in Pokemon diamond, pearl and platinum snesel can'NT evolve but can evolve in Pokemon diamond, pearl and platinum
you can trade it at the guy at snowpoint city
Yes, unless you ask the person you are trading with, to cancel the evolution.
Gastly evolves to Haunter at level 25. Then, Haunter evolves into Gengar by being traded.
you have to trade him he cant just evolve if you want i can trade with u i have pearl idk wut my friend code is but if u tell me urs then give me a time and we can trade