Is there a way to make it easier to get a certain Hidden Power type?

Question

I want to get HP rock to my treecko but I've bred over 20 treecko,and none of them had it

Answer 1

There really is no easy way to do it, it took me forever to get my Sceptile to have Rock type hidden power, with a good amount of damage too. The only way is just to be patient and you'll eventually get it.