I have been thinking about the Regis for a while now, so I’ve decided to make a theory/explanation about all of the Regis. We have no idea why the Regis were created, but we do know that Regigigas was the one who created them. So, here is my theory on why the Regis were created, and what Regigigas’ goal was. The Regis were created to protect regions if something terrible happened to them, such as an apocalypse. This explanation makes a lot of sense, and I’ll start by explaining a bit more about the Regis. So, at first, Regigigas pulled continents with ropes, and showed how powerful it was. Ancient humans revered Regigigas as some sort of god-like entity and worshipped it until they eventually didn’t anymore, and sealed it away in Sinnoh. Regigigas most likely made the first trio of Regirock, Registeel, and Regice in Hoenn. The people there worshipped Regigigas until they eventually sealed away their Regi guardians. I can’t say whether or not Regigigas was there at the time, but I don’t think it really matters. Regigigas then went to the Galar Region. There, it created Regieleki and started Regidrago, but most likely fled after realizing these humans were completely hostile and didn’t want its guardians. We can see this because they didn’t want Regidrago completed, and they seemingly surpressed Regieleki’s powers for no other reason than they were afraid of it. Regigigas then travelled to Unova, and decided to go with the “if it ain’t broke, don’t fix it” approach and decided that since the previous Regi trio made humans happy while it was there, but not Regieleki and Regidrago, it decided to remake the original Regi trio in Unova, where they were once again sealed away. Finally, Regigigas moved to Sinnoh, and created its third and final trio, which were also sealed away along with it. Now, for an important point: The sealing of Regigigas is always portrayed as a forced sealing, but evidence shows that Regigigas probably allowed itself to be sealed away. It has been shown Regigigas can free itself at any time, such as in the movie “Giratina and the Sky Warrior” where it sensed the large glacier about the kill thousands of creatures and woke itself up to go help everyone. In ORAS, it leaves Sinnoh purely just to visit the Regis it left in Hoenn, possibly sensing a trainer was willing to train them. Now why was Regigigas sealed away? It was sealed away supposedly because humanity was afraid of its power. Maybe it sensed that if humanity didn’t think Regigigas could protect them and they were afraid of it, it decided to do what the humans wanted and let itself be sealed away. Regigigas moved from region to region, building guardians to protect humanity, only for the humans it wanted to protect to become afraid of all of them and seal them away. This theory doesn’t go with what is stated on Bulbapedia, but Bulbapedia doesn’t really make sense. It claims Regigigas created one trio and then the two new Regis for the Crown Tundra, and that’s it. The original trio were sealed away in Hoenn, Regigigas was sealed in Sinnoh, and the other two were sealed in Galar. This doesn’t make any sense. How were there three groups of Regis that could be encountered in the main series games in different ruins? There is also no way they could have travelled there, due to one thing or another having them being sealed away. There is also an explanation from the Multiverse theory, which explains every game is a different universe. What if in multiple groups of universes, the same Regis were sealed in different places? Well, we just don’t know, but it still doesn’t make sense in the context of Bulbapedia’s explaination. Maybe we’ll know more once the Crown Tundra DLC Releases. For now, this is the theory I’ve thought of. Are there any points I missed?