In the main series of animation Zhen Diamond, Xiao Zhi and his party first came to Shui Vein City to challenge the owner of the Pavilion When Dong Gua was not there, the disciples of the Dojo mentioned that Dong Gua went to Steel Island for cultivation (but in fact, to dig up fossils), and Ah Tao, who accompanied Xiao Zhi and his party to Steel Island, also went to Steel Island to cultivate (this is the real sense of cultivation), Steel Island as a location in the game, where there are black gold relics that can capture Regicukas, and the player can also meet a trainer - Ya Xuan, Defeat him to get Leolu's egg, and this NPC is also featured in the anime.
PS: This article is purely personal opinion, if there are any errors, please correct.
Related Episodes: Diamond & Pearl Episode 109 "Achan and Lucario"
Steel Pokémon in a frenzy:
Xiao Zhi and his party were in the Pokémon Center of Shuimai City, waiting for the boat to go to Mutong Town, when they received a phone call, it was from Ah Tao, who was practicing on Iron Island, ah Tam said that Emperor Nabo suddenly began to attack indiscriminately, and was bent on "finding out the reason", in order to help him, Xiao Zhi and his party also decided to go to Steel Island, after arriving at Steel Island, they saw the scene of Steel Attribute Pokémon and Pokémon attacking Pokémon everywhere, leaving Xiao Zhi dumbfounded. Faced with Xiao Zhi who was trying to stop the rampage, the Steel Attribute Pokémon attacked, at which point Lucario and a waveguide messenger, Ya Xuan, appeared to protect Xiao Zhi.
Achan and Lucario:
Knowing that the purpose of Xiao Zhi and his party coming here is to find Ah Tao who has entered the depths of steel island, Ya Xuan and Xiao Zhi and his party will walk together, Ya Xuan is also a cultivator on the steel island, his partner is Lu Kallio, he also has the power of the waveguide, and Lu Kalio is practicing the power of the waveguide, and Lucario as a steel Pokémon Is not mad, because it wrapped itself with the power of the waveguide to protect itself from the impact, as for Ya Xuan himself does not know the reason for the steel Pokémon's rage, At present, like Xiao Zhi and his party, they are also in the investigation stage, on the other hand, Ah Tao encounters the Rocket Trio.
The Galactic Conspiracy:
A Tame and Team Rocket trio found that it was the Milky Way team that excavated the black gold relics on the Iron Island, and used the black gold relics to use an unknown device, the low frequency wave emitted by the device affected the steel Pokémon, A Tame and the Rocket Team trio were randomly defeated by the Galactic Team's star and fell into the pit, Xiao Zhi and his party then arrived, Lucario felt that the device used by the Galaxy Team was the source of the steel Pokémon's rage, and then the Gang Star activated the device and placed the gun key in the ruins. A ray of light had already been emitted in an instant, and at the same time, Lucario finally couldn't stand it and became violent.
It can be seen that this is another episode related to the Galactic Team, so what happens next, we will talk about the next episode.