Byron used used his Onix in the first part of the challenge he set up for Hareta. Onix used Earthquake and Rock Slide to stop Hareta from completing the first part of the challenge but Onix didn't succeed.
|Earthquake||Challenge! The Fortress Of Steel!!|
|Rock Slide||Challenge! The Fortress Of Steel!!|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.