after you beat the elite four go to Stevens house in mossdeep and take the pokeball on his desk.
You have to evolve beldum to a metang and you can find beldum at route 228
I Will Trade You A Beldum
Yes beldum evolves into Metang
you will find beldum in the cave
Beldum evolves at Level 20.
Beldum Is Located At Route 220-229.
beldum evolves into metang at level 20
Beldum can not learn any Tms or HMs.
Beldum is a Steel and Psychic type pokemon.
Beldum evolves at level 36.
if the beldum is under lv11
you can catch beldum at route 228 with poke'radar