What do you think poison type pokemon are weak against? If your first thought was Fire Type, you’re wrong, they are weak against ground type and psychic type in pokemon go. This is how it works, we explain this and other pokemon weaknesses in our Pokeweed app. Fighting Type are super effective against Normal Type and inflict increased damage. However, Fighting Type are less effective against Flying type and does decreased damage. You can walk through every pokemon go type weakness with our Pokemon Go Type Collection.
This app further explained with our Pokemon Go weakness also known as a Pokemon Go Weakness Collection.