Through normal gameplay you can't but I'll tell you some ways to get a legitimate Lugia.In third generation,if you have the Mystic Ticket,(which you can't get anymore,except through cheating) you can capture it at Naval Rock,then you can migrate it to Pokemon Diamond through the Pal Park.You can also get one by trading with Pokemon XD Gale of Darkness.Purify Shadow Lugia by getting all of the "chambers" in the purification chamber to be a "best circle",then trade it to a third generation game,and migrate it to Pokemon Diamond.Lastly,you can capture one in Pokemon SoulSilver,through normal gameplay,or Pokemon HeartGold in the post-game storyline and trade it over to Pokemon Diamond. These are the real ways to get a Lugia in Pokemon Diamond.
It isn't possible to catch mew in Pokemon diamond. You need an action replay cheat cartridge.
Deoxys doesn't come from a fossil, and can only be found through events from generation 3 games. If you want Deoxys in Diamond, you will have to migrate one through the pal park after you beat the Pokemon league.
spear pillar through mount coronet. look of youtube how to get through. buy minimum 10 max repel to not encounter many Pokemon
It's Snowpoint City. I think you have to go through the mountain toget there.
You can't catch Lugia in Pokemon Diamond. You can only get it through trading or cheating.
trade from platnium to diamond through either nwc orthrough having 2 ds systems
Have a strong fire type pokemon.
migrate them through palpark after you get the national pokedex.
i believe there is 490 through 493
You can get it through trade or the GTS.
ar or through an event
You can only get it through events.
You can only move pokemon from ruby to diamond, not the other way around, through pal park. You need both games in your ds to do this
You can't find tangela in diamond or pearl you have to transfer it over through Pal park
ARCEUS get it through event
get action replay!