Sorry to bother you. I'm glad you're enthusiastic about The Ones That Got Away, but it would be much appreciated if you put your videos in spoilers. It really clutters the page and can even slow down the load time for some people because it has to load 5 videos at once. Thank you!
I personally find him pretty easy with Marshtomp due to the part ground type meaning it can just take the electric attacks without taking any damage, with the most of it coming from the likes of Sonicboom against them.
Seeing as I've made next to no progress just sitting here playing in the Game Corner saving up for Flamethrower, I'd say I really need to get some training in for Wattson. I can't wait for Makuhita to evolve though, should add a significant boost in power to the team.