Primarina, a Water and Fairy-type Pokémon, is a strong choice for battling Dragon-types in Pokémon Go.
The ideal moveset for Primarina is Charm as its fast move and Disarming Voice and Hydro Cannon as its charged moves.
Charm, a Fairy-type attack, deals more damage than Waterfall, the other fast move option, making it the better choice.
Disarming Voice and Hydro Cannon are the most effective charged moves, with Disarming Voice being quick and Hydro Cannon dealing high damage.