i do not know the difference but i heard you can catch the kyurem forms of rusharam and zecrom so yes it is worth it
no
It increases the chance of finding shiny pokemon. How much is currently unknown.
My back yard
Get shiny Raikou, shiny Enti, and Shiny Sucuine (in your party) and then go 2 lostlorn forest
route 1
Anywhere that you can catch Riolu. Shiny Pokemon can appear anywhere and anytime; with a 1/8192 chance of one appearing.
no victini is not, thunderuos is not and the 2 that look like thunderous is not. zecrom is in the black stone in the 2nd gym leader's museum but will come out for you when you battle n in his castle
It might be shiny but then it might not.
There is no best route in Pokemon White 2 to find shiny Pokemon, because you have the same chance to find a shiny Pokemon on every route in the game.
no one trades shiny Pokemon because they are rare new person:i have a shiny umbreon in my pearl that i will trade for a different shiny Pokemon
A shiny Pokemon has a 1/8192 chance of appearing and Buneary is one of them. It is very rare and comes by chance, unless you are shiny hunting for it. To reduce the Shiny rate, you can:Perform the Masuda Method, which is about two Pokemon from different countries in the Day-Care. This drastically decreases the Shiny rate and they can be often found, but it still requires a lot of hatching if not lucky.Use the PokeRadar in Pokemon Diamond, Pearl, or Platinum in Eterna Forest to repeatedly find Buneary until a grass shines pink. It roughly decreases the rate to 1/42. When you find it, you can transfer it to Pokemon Black 2.Complete the National Dex and obtain the Shiny Charm, which also increases the chances of finding a shiny Pokemon.