dude clone ur Pokemon holding a masterball to get 2 i made 99 master balls but itl take a long time that's how i caught them
no.
no
catch them
yes if you can find them
None of the legendary dogs are available in Emerald you must obtain them from Firered, Leafgreen, or Pokemon Colosseum.
The legendary shiny dogs event
2
you cant without trading. and which dog you encounter depends on which starter you choose. but you only get to catch one out of the three in the game by yourslef
yes you can catch all of the legendary dogs, they wander and you can see them on the pokegear map
You can find Lugia, the legendary dogs/ Suicune, Enti, and Raichu, and I think Ho-Ho
Strong Pokemon like lugia, ho-oh and the three legendary dogs
You can't. The legendary dogs didn't exist at the time yellow was released. Sorry.