You can't catch Lugia in Pokémon Diamond, you have to trade it from Pokémon SoulSilver or HeartGold. You can also migrate it from Pokémon Emerald, FireRed, LeafGreen or Pokémon XD
You cant i wish you could though
migrate it
Dont know lolololol
You can't catch a Lugia anywhere in Pokemon Diamond.
Dialga
lugia isn't in Pokemon leaf green
have to hack to get lugia
i know you can catch a ditto
luck
No.
You can catch Lugia at Navel Rock.
You can't catch Lugia in Pokemon Diamond. You can only get it through trading or cheating.