"The Underground Boss"

On to the second half of Unova's Leaders, it's the self-made man Clay, business owner of a mining company and other ventures in the region. By this point, you have a decent handful of Grass and/or Water types (or you chose one of them as your starter), but in comes his Excadrill who has no Grass weakness and just might outspeed and stomp on your Water type. As for the Gym itself, it goes for a mining shaft theme in BW, but then changes to conveyer belts and switches in BW2.