Once you beat the Elite Four and N, you can access the Pokemon Transfer Lab on route 16(I think). If you have another DS or DSi with a Pokemon game that has one(or all) of the three, you can use the transfer lab to send them over to black.
Umm i think there are three: entei, raikou, and suicune. but its probably just suicune
Capture Entei/Raikou/Suicune.
If you have shiny Entei, Raikou or Suicune from Diamond, Pearl, Patimum, Heartgold or Soulsilve, trade it to Black and put it in your party and go to Lostlorn Forest.
Yes Entei/Raikou/Suicune it depends on what starter you chose.
entei, suicune, and raikou those are the only one's i know of besides houndoom and houndour.
Entei, Suicune, and Raikou are not available in Pokemon Emerald, Ruby or Sapphire. They can be brought into the game by trading.
Entei Raikou
The Shiny Suicune was a game stop event held before Pokemon black and whiter where releases. You had to get either suicune riakou or entei at the event of your Pokemon Pearl/diamond/platinum/soul silver/ or heart gold version, and then transfer them to your Pokemon black/white version.
Suicune, Raikou, and Entei
Umm i think there are three: entei, raikou, and suicune. but its probably just suicune
Both events......zorua =celebi event........zoroark = entei raikou and suicune event
raikou,suicune,entei
There are 3: Entei, Suicune, and Raikou
You can not breed legendary pokemon.
It has Raikou,Entei,Suicune, and Celebi. It also has Zorua and Zoroark, but these are not legendaries according to Bulbapedia.It has Zoroark,Zorua,Raikou,Entei,Suicune, and Celebi.
You get suicune,raikou,or entei depending on your starter pokemon (charmander = suicune squirtle raikou and bulbasaur entei) and you can get mewtwo in cerulean cave
Suicune is wandering around Johto after they (Entei, Raikou, and Suicune) runaway from the tower.