Feb 17, 2016, 01:21 AM
(This post was last modified: Feb 17, 2016, 01:22 AM by Excalibur0126.)
They are available through dexnaving. You just have to be patient. The more you encounter said Pokemon, the better chance you have of getting its hidden ability. If the Pokemon is holding an item, that will block the ability. So I would catch it in case it has its hidden ability.
The minute you think of giving up, think of the reason why you held on so long.