This guys fucks up all of Hoenn in Ruby and Saphire. Blaziken gets fucked by Wallace and Sceptile gets fucked by Flannery, but Swampert solos Team Magma/Aqua, the gyms and the Elite 4. Just get a Swellow to get past your rival's Grovyle and you're good to go.

That's how I used to play Ruby when I was a kid.