it evolves at level 25 into haunter then you trade it to someone and it will be a gengar.
gastley evolve's at level 25 trade hunter to get gangare
gastly evolves at level 25. for gengar you have to trade
Gastly evolves into Haunter at level 25, then trade it and it will evolve again into Gengar.
No you have to Evolve Gastely into a Haunter then trade it with one of your friends to get Gengar, you need the kings rock on a slowpoke and trade as well to get a Slowking
It is suppose to evolve at the Level of 20,but if you want it to evolve later it can evolve anything after it is at Level 20.
It will evolve by level. Teddiursa will evolve into a Ursaring at level 30.
They evolve at level 36
It will evolve at level 36.
They evolve on level 40
it evolve on level on 64
To evolve a Sandshrew level it up to Level 22 and it will evolve into Sandslash.
Pikachu do not evolve by level. They evolve when a thunderstone is used on them.