>>43750621I think the implication is that people sealed it away before Regigigas could complete it. Something similar happened to Regieleki.
https://swordshield.pokemon.com/en-us/expansionpass/pokemon/regieleki/>This Pokémon absorbs electrons to live. Electrical energy makes up most of its body. Its Electric-type moves are said to pack the greatest power of any used by Electric-type Pokémon.>Researchers have determined that Regieleki’s body is fitted with what appears to be special insulating equipment that does not conduct electricity. Some theorize that in ancient times, people tormented by Regieleki fitted the equipment on the Pokémon to restrain its powers.The blue rings were put on it to restrain it.
