Go to dawn/lucuses house and talk to her little sister... she MIGHT say there is a swarm on route 228......
cant you have to trade to metang (same with beldum and metagross)
Beldum Is Located At Route 220-229.
if you talk to dawns sister she will tell you were you can find a Pokemon she will say there is a beldum on some route you can only talk to her once a day
you find BELDUM at rout 210 i think. its somewhere in a desert area.
Evolve Beldum.
In Pokémon Diamond/Pearl/Platinum there is a swarm in Route 228 that you can find wild Beldum. Be prepared, Beldum, along with its evolved forms, are the only non-legendary Pokémon to have a catch rate of 3, which is the lowest possible, making Beldum extremely difficult to capture due to its self-damaging move, Take Down.
you will find beldum in the cave
You have to evolve beldum to a metang and you can find beldum at route 228
It is a swarming Pokemon. After getting the national dex, you have to talk to Dawn's sister each day until she says there are beldum.
You cannot get Beldum with Ruby inserted in Pokémon Platinum in order for Beldum to appear in the wild, check in with Dawn's sister in Sandgem Town. She'll tell you what Pokémon is currently swarming. Beldum is 1 of the many swarms so it'll be one of them before you know it because it changes daily.
You have to evolve your metacross who is the evolved form of beldum.
you have to get beldum and when it is a lvl 21 it evolves into metang. there will be a beldum swarm somewhere after the national dex. P.S metang evolves in to metagross at lvl 40