Pokemon in their teams. They're a lot cooler ultimately, not to mention the fights look AWESOME. Aaron's got a ton of Bug-type Pokemon on his team, along with a Dark-and-Poison-type Drapion to round it out. Bertha uses a lot of Ground-type Pokemon on her team and is also a pain to fight. Try to have your Pokemon at least at level 50 before taking them on, and remember to pick up X Attack, X Speed, etc. (20 of each of the whole set) if you need to get an extra edge in your fight! ( ...