Catching the Regis in Emerald is a challenging but rewarding task. The Regis are a trio of legendary Pokmon that can only be found in the Hoenn region. They are Regirock, Regice, and Registeel. Each of the Regis has its own unique type and moveset, making them a valuable addition to any team.
To catch the Regis, you will need to first find their locations. Regirock can be found in the desert to the west of Mauville City. Regice can be found in the snowy mountains to the north of Sootopolis City. Registeel can be found in the ruins to the east of Fortree City.