One of the most notable was Tobias, Ash's opponent during the Sinnoh League. Tobias had a Darkrai and a Latios, and easily won the league by only using these two Mythical and Legendary Pokémon.

Ash has made it to the semi-finals of the Sinnoh League, where he goes up against Tobias - the mysterious Trainer who has the Mythical Pokémon Darkrai on his team!