Pokémon X and Y
After defeating Korrina, she gives the player the Rumble badge and TM 98 Power-Up Punch.
Tower of Mastery
Directly after beating Korrina at Shalour City Gym, she challenges the player to a rematch atop the Tower of Mastery. In this battle she challenges the player to a one-on-one battle and gives the player one of her Lucarios and the Mega Ring to battle with. Whether the player wins or loses, Korrina offers you the Lucario she gave you that is holding a Lucarionite.