Need Help Getting Gliscor's Hidden Ability

[TheRationalDove]

Hello there everyone. I have been trying in vain to catch a Gligar with the Hidden Ability Immunity for a while now and I have been exclusively using Horde Encounters to find one (since you can get Hidden Abilities that way). However, all of the Gligars I have found up to this point had its regular Abilities. Does a Gligar with Immunity show up through Horde Encounters? Or is it just a really rare occurance?

 

[Scarfed]

You are just unlucky and it takes quite some time to find one since hidden abilities in horde encounters are rare.