the way i did it is get a male and a female electabuzz from a gamepak and migrate them over and take them to the daycare dude in solocean and leave them with him and after a while you go back and see if he has an egg and if it does success! you can do the same with any Pokemon pretty much aswell
I'm not sure about elkid but you can find elecktabuzz in the power plant where you will find zapdos.
you get the manaphy egg in Pokemon rangers and send it into Pokemon diamond or pearl
breed electabuzz
You get a togepi egg in Pokemon Platinum, not Diamond.
Have two Nintendo DS one have the Pokemon Ranger and one with the Pokemon Diamond. Then go to check egg. Then you have it.
It is not possible to get a Lugia egg in Pokemon Diamond. It is generally impossible to get an egg of a Legendary Pokemon the only exceptions being Manaphy and Phione.
Happiny
Manaphy is obtainable in Pokemon Diamond if you also have a copy of Pokemon Ranger. The game Pokemon Ranger is able to communicate with Pokemon versions; Diamond, Pearl, Platinum, HeartGold and SoulSilver to transfer a Manaphy Egg to them. This Egg can be hatched like any other Pokemon Egg.
you cant unfourtanately
happiny
It's Happini.
You must breed a Monferno or Infernape with a Pokemon to get the chimchar egg.