Just use it in battle a lot. I think that there is also a special stone or something similar to the fire and thunder stone that can evolve it right away.
you have to trade it to get a golem.
You trade it and then it evolves into golem.
You need to trade it so it can evolve into a Golem.
Graveler does not evolve naturally. Graveler can only be evolved by trading it. Once you trade it, it will evolve into a Golem. There is no other way to evolve it.
never it evolves after trading
Altaria does not evolve again.
Hypno doesn't evolve.
in any union room with a freind
Gligar will not evolve in xd gale of darkness.
lvl. 15.
to evolve a togepi in Pokemon XD: Gale of Darkness you need to use a lot lot lot of cologne, you kno, the scents.
it doesn't evolve only in Pokemon diamond or pearl.