Regirock was awakened from the Desert Ruin by Sidney after Steven lifted the seal on the chambers with the ancient stone plate. Commanded by Sidney and Drake, it attempted to control the damage caused by the fight between Kyogre and Groudon together with Regice and Registeel. After Steven’s apparent death, Regirock broke free from the Elite Four’s control and departed. It was later found by Brandon with the help of the restored stone plate and captured as his team member.
