>>39460976>>39461029>>39461126Using your Z-move to guarantee rocks is fine, it's the whole reason mons like Garchomp are so good now. The issue with Drednaw is that it doesn't seem like a very good mon outside of having economy of action with G-Max Stonesurge, so it's questionable whether or not it can actually get in safely and beat Defoggers. You might be better off using a mon with regular Stealth Rock that can Dynamax/Gigantamax to beat the popular defoggers, just using the threat of powering up to set SR without blowing your load needlessly.