Walkthrough
As you begin your battle against the final Elite Four Member, Lance, he will mention how your trainer is the second one he has had to face recently. The first, unfortunately, defeated Lance when he was yet still the Kanto Region Champion, making said trainer the newest Champion. After defeating Lance, you will proceed to challenging this very trainer. And, of course, that trainer just so happens to be your Rival. Since your last battle with him, he has fully evolved the remaining members of his Pokemon Team, having also trained immensely in Victory Road. Defeat him to become the newest Kanto Region Champion, officially ending the Main Story.
Rival (Bulbasaur Chosen): Level 59 Pidgeot, Level 57 Alakazam, Level 59 Rhydon, Level 59 Exeggutor, Level 61 Gyarados, Level 63 Charizard
Rival (Charmander Chosen): Level 59 Pidgeot, Level 57 Alakazam, Level 59 Rhydon, Level 59 Arcanine, Level 61 Exeggutor, Level 63 Blastoise
Rival (Squirtle Chosen): Level 59 Pidgeot, Level 57 Alakazam, Level 59 Rhydon, Level 59 Gyarados, Level 61 Arcanine, Level 63 Venusaur
Now that you know about the Kanto Region Championship, Click Here to learn about rematching the Elite Four during the Post Game Story!