As his Weavile was unable to battle, Cyrus sent out his Gyarados against Cynthia. It managed to dodge all of Milotic's moves. As sunrise started, Cyrus ordered Gyarados outside through the hole in the wall, created by the battle between his Weavile and Cynthia's Milotic. It positioned itself in front of the sun and used Dragon Dance. Once it was ready, Cyrus commanded it to use Giga Impact, causing Milotic to faint. Cynthia sent out her most powerful Pokémon, Garchomp. Garchomp bit into Gyarados and battle was brought outside. As Cynthia saw how much Garchomp, she told it to use Draco Meteor, to the shock of Gyarados and Cyrus. As a result, it exhausted Garchomp, but Gyarados still had the energy to continue fighting.
At the Spear Pillar, Cyrus sent out his Gyarados, along with his other Pokémon, to stop the Gym Leaders from destroying the Red Chain. Gyarados attacked Roark's Rampardos, but Gyarados was unable to stop the Gym Leaders in time.