>>16477582It is a risky play, but Aggron has no other recovery besides the usage of wish, which requires you to switch out and set up again. I've personally been luck for the numerous times I've run other rest+talk pokemon, but I know people who just keep resting.
>>16477521Compare the weight of other pokemon you'll mostly be going up against. Heavy slam is usually 120+STAB which ends up around at the 140 mark. Sure, Mega TTar, Steelix and Mamoswine can become a hassle, but I have other pokemon designed to counter those pokemon already since they all share common weaknesses.