After his Palpitoad was defeated, Clay, furious how Palpitoad was easily beaten, sent his Excadrill as his final Pokémon. Excadrill used Rapid Spin to deflect Snivy's attacks, including Attract and defeated Ash's Snivy by using Horn Drill. Ash, for his last Pokémon, sent Ash's Rogenrolla, who started off with Sandstorm, but was immediately hit by Excadrill's Drill Run. Roggenrola endured Excadrill's attacks, earning Clay's respect. Excadrill tried to finish Roggenrola off with Horn Drill, but Roggenrola evolved into a Boldore and stopped the attack, using Rock Blast to attack Excadrill. Both Pokémon clashed against each other using Rock Smash. However, Boldore managed to inflict major damage and defeated Excadrill, earning Ash a victory for the Gym match.
Ash remembered battling the Unova Gym Leaders, including Clay and his Excadrill, the night before he entered the Unova League.