This guide will help you defeat one of the most difficult Venusaur raid bosses. Venusaur is a Stage 26 boss, with 921 CP (Battle Points) and a maximum CP of 1467.
To defeat him, do not go alone or in a small group. Assemble a team of at least 6-7 coaches. Also, the higher the level, the easier it will be for you and your group. You should also have a good set of moves and a high CP Pokémon. Since Venusaur is a herb / poisonous Pokémon, it is weak against fire, ice, flying creatures, and psychics.