Diamond

Diamond is a "rookie" trainer in the Zhery league. You first encounter him on Route 402 in the Pichu cutscene.

First Battle (Route 402)

 * Pidgey Lv 11
 * Elekid Lv 12
 * Charmander Lv 12

Cutscenes
See cutscenes.

Pichu
You see diamond alarmed about a Pichu drowning so you go and save it. After you battle the Pichu, Diamond introduces himself and battles you. After the battle he leaves.