This Aurorus is a rock/ice-type Pokémon owned by Grant.
Aurorus traveled with Grant around Cyllage City's surroundings, for Grant had to investigate the crash. Grant soon found out it was Cassius who crashed the helicopter and started yelling at him.
Aurorus traveled with Grant to Laverre City, where Grant met up with Olympia and Valerie about the crisis of Kalos, namely Team Flare.
After seeing the Ultimate Weapon was about to be launched, the Gym Leaders and their Pokémon, including Grant, his Aurorus and Tyrantrum, tried to seal the "bud", preventing its activation.
After the battle was over, Grant sent Aurorus and Tyrantrum to help rescue people and Pokémon that were affected by the Ultimate Weapon's blast.
None of Aurorus' moves are known.