IMO, I don't think Brock's Marshtomp should evolve. As a Mudkip, it hardly ever battled aside from battling TR. I never actually seen Brock's Marshtomp yet, but I have seen him in those episode pictures. This means that I've seen that Marshtomp has gotten that whole "love" thing Brock always does. I always found that very annoying several seasons ago. I REALLY like Swampert, so I would find it to be a disgrace (at least to me) if Brock's Swampert did that. Good thing it isn't. I HIGHLY disagree with Brock's Marshtomp evolving.