Regice was made available around the world in Pokémon GO Raid Battles until today, July 19, at 20:00 UTC. The Legendary Ice-type Pokémon has officially been replaced by Registeel until August 16, when it will be replaced by Regirock. These Legendary Pokémon can be caught only with the Premier Balls you earn from defeating it, so you’ll need your Pokémon to perform well in battle to maximize your chances. You can participate in Raid Battles even if you’re not high-level or if your Pokémon aren’t the strongest, but you’ll have an easier time if you prepare.
In addition, new Raid Bosses have been added to the game. Alolan Raichu and Alolan Marowak are now appearing for the first time. Alolan Exeggutor is also available as a Raid Boss for a limited time.
Pokémon Blog 
2 thoughts on “Alolan Marowak is now appearing in Pokémon GO for the first time as a new Raid Boss”