How do you get a Shiny Groudon, Kyogre, and Rayquaza in Pokemon Black 2?

Question

i need a shiny legand...

Answer 1

You transfer one that you caught in HeartGold and SoulSilver. You can't catch them in Black 2. And it's only a 1/8192 chance you'll find one in those games anyways.

Comments

In X and Y, the chance got halved.