You often have limited times to teach a Pokémon a special, exclusive move in Pokémon Go. This is a move the Pokémon wouldn’t be able to traditionally learn if you were to catch it any other time throughout the year. For example, some Pokémon only learn a distinct move when they have a community day, rare. Alolan Marowak will be having this treatment, and for a limited time, it will be able to learn shadow bone.
To teach Alolan Marowak shadow bone, you need to catch it during one of the raids on its raid day. The raids will be going on from 11 AM to 5 PM in your local time zone on October 31, 2020. Alolan Marowak will be a three-star raid, so it shouldn’t be as difficult as the legendary Pokémon you may encounter and require somewhere between five to 10 trainers, but you may need a few friends to help take it down. The move is a decent addition to its potential moveset.
Alolan Marowak is a Ghost and Fire-type Pokémon, making it weak to Dark, Ghost, Ground, Rock, and Water-type attacks. You’ll have plenty of success against it using Rhyperior, Mega Blastoise, Mega Gengar, Swampert, Mega Houndoom, Garchomp, Terrakion, Gyarados, and several others. Alolan Marowak has several weaknesses that you can exploit.
We can’t confirm if you will teach Alolan Marowak the move after the raid day. Potentially, trainers who miss out on it could have the chance to use an Elite Charge TM to teach their Alolan Marowak the move, but Niantic has not confirmed that information.