you cant get a wild one. you'll have to get a gastly and level it up to lv.25.
a ghastly is mostly in bell tower.(where you get ho-oh)
You'll need to trade for a Haunter in order for it to evolve into Gengar.
Gastly evolves into Haunter at level 25, then trade it and it will evolve again into Gengar.
If you want to evolve haunter,you have to trade it to another game.
You have to trade haunter to a friend to evolve it.
Gastly evolves into Haunter at Lv25.
haunter has to be traded to evlove haunter evolve into gengar in level 42
OF COURSE!! you'll need to trade an haunter to a friend, and haunter will evolve TO GENGAR
Haunter is a ghost type Pokemon
The pre-evolution of Haunter is Ghastly. To evolve Haunter you must trade it to Friend and have them trade it back.
You'll need to trade for a Haunter in order for it to evolve into Gengar.
Gastly evolves into Haunter at level 25, then trade it and it will evolve again into Gengar.
You trade haunter to get gengar.
Haunter evolves when traded
Yes. Haunter evolves into Gengar when traded.
Haunter evolves by trade
Trade Haunter and you will get a Gengar.
You must trade haunter with someone