How do I evolve my Lv 33 Murkrow in pokemon Diamond?

Question

My cousin said I needed a dark stone or dusk? something like that

he said a pokemon with the ability pick up can find in or get it in a team galatic building but I need a key to get in there base. Where do I get the key?

Answer 1

Use a Dusk Stone

Answer 2

dusk stone and to get the key you need to go in the big buliding and look around

Answer 3

In order for your Murkrow to evolve, use a dusk stone. =)

Answer 4

A dusk stone, simple as that.