It's for Carracosta, from my last question about which Pokemon to counter Talonflame. I decided this Pokemon cause it has good abilities and.................. (you don't need to know)
So if you got an answer just write below, thanks
As Carracosta has 108 Base Attack as compared to 83 Base Special Attack, I would pick Rock Slide or Stone Edge over Ancient Power. Between those two, I usually run Rock Slide because of more accuracy (I have bad experiences of missing Stone Edge in a lot of crucial moments) and the added chance to flinch. In a Shell Smash set for Carracosta, a lucky flinch can possibly lengthen your sweep.
I would pick Rock Slide.