Much like Totem Lurantis, Totem Kommo- is sure to give all players quite the difficult time when in battle. As in Pokemon Sun & Moon, Kommo-o will have all of its stats increased when the battle begins. However, this time around, it will also have a berry that will weaken the first Fairy Type Attack used against it. On top of this, Kommo-o will also call upon Scizor for help in battle, giving it a partner that loves to crush opposing Fairy Types.
Even though Kommo-o has said berry and Scizor for an ally, Fairy Type Pokemon are still your best bet at defeating Totem Kommo-o. If you chose Popplio as your Starter Pokemon, it now being Primarina will pay off immensely here. It has the Fairy Type Moves to crush Totem Kommo-o, while still not taking too much damage from Scizor since it is part Water Type. If you didn't choose Popplio as your Starter Pokemon, your best bet is to come at Kommo-o with everything you go, including a strong Z Move of a type it isn't resistant to. No matter your path of actions, make sure to have plenty of Recovery Items on hand for this battle.