Meteor Mash Metagross is awesome for farming gym badge points.

It has enough DPS to be time/badge point efficient for my slow, long attacks, and hs pretty good dodgeability too. Of course it won’t be as fast as Machamp, but Metagross is good enough, unlike Ttar and Lugia. And most importantly, it is very potion efficient.

I got a 15/15/13 lucky and maxed it. It can literally take down a maxed Blissey, Chansey and Snorlax by itself, with perfect dodging.