These trainers appear under this colosseum and also appear later in the difficult ranks. 1. * Damon: PIKACHU Fan 2. * Harry: Bug Catching Man (Bug Type) 3. * Desiree: Leader-In-Training 4. * Sierra: Swimming Club Member 5. * Ruben: Passionate Rider 6. * River: Youthful Couple 7. * Marina: Colosseum Leader