Get ready—Regirock, Regice, and Registeel are reuniting and returning to raids! From Friday, November 1, 2019, at 1:00 p.m. to Monday, November 4, 2019, at 1:00 p.m. PDT you can find Regirock, Regice, and Registeel in five-star raids. Pokémon that can counter them will be appearing more often in the wild and from Eggs, and if you’re lucky, you might encounter Shiny Skarmory, Shiny Regirock, Shiny Regice, or Shiny Registeel.
If you purchase a ticket for a limited-time-only Special Research story event, you can earn an early-access encounter with Regigigas before it debuts in EX Raids. This event does not have a set location—if you have a ticket, you can take part wherever you can play Pokémon GO. Find out how to get a ticket to this first-ever event on our blog. Stay safe, and happy exploring!
—The Pokémon GO team
Source: Niantic PR