Skarmory was used by Walker as transportation through the air. Walker was riding on Skarmory when they encountered Suicune and attacked it. Chuck later helped them and Walker ordered Skarmory to use Swift to weaken it. Skarmory used Swift and Walker thought the attack hit Suicune. They later figured out that it collided with Suicune's Swift, making it able for Suicune to escape.
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.