What beats ghost types in pokemon violet?

dark and ghost moves are both super effective on ghosts. dark is the safer one, since ghost types hit a ghost of yours just as hard back. normal and fighting moves do nothing at all, so take them out of the plan. for ryme's gym, if you started with sprigatito, meowscarada is part dark and handles most of it. watch her last pokemon, it terastallizes into a ghost type, so the same plan still works.