Currently, I'm try to use the horde method to meet up with shinies. You're encountering about five to six Pokémon in each horde battle, which increases your chance of stumbling into a shiny significantly. So far, I've been able to encounter one shiny Pokémon by using this method. It was Mareep. I didn't catch it, though. Why? Because I already had a shiny Mareep on Pokémon Black 2, with an excellent set of nature, ability, EVs, etc. I've gotten it from a friend, and can make sure that it's not hacked. So, yeah, since I already had one, I just didn't need another. When PokéBank launches next month, I will have it transferred to Y immediately. d: