On a pikachu to evolve to a raichu
They don't evolve at any level you have to get a thunder stone and use it on pikachu
use a thunder stone on pikachu.
thunderstone cave
Use a thunder stone on an eevee
Use a thunder stone
Underground use the Explorer Kit.
you have to use a thunder stone
use a thunder stone on eevee
You trade him, you don't use a stone.
use surf
use a fire stone
Get a Vulpix and use Fire Stone on it!