Phoebe and the other Elite Four members were called by Steven to help protect the Hoenn region from the battle between Groudon and Kyogre. While the other Elite Four are tasked with attempting to open the chambers containing the Legendary Pokémon Regirock, Regice, and Registeel, Phoebe goes to meet with a blind boy that holds a slab that has the secret to awaken the three Pokémon. After the slab is translated and Steven manages to awaken the Legendary Pokémon, Phoebe is tasked with controlling Regice alongside Glacia. The Elite Four, Steven, and Wallace all control the three legendary giants in three pairs of two and use their power to keep the power released from Groudon and Kyogre's battle from spreading throughout Hoenn. They manage to keep the power contained for several weeks, but the strain is too much for Steven and he eventually dies, causing the three Pokémon to lash out and flee. Phoebe later mourns Steven's death before his revival at the hands of Ruby's Celebi.