BugDark
Bug and Dark types: weaknesses, resistances and Pokémon
Bug and Dark Pokémon take double damage from Fire, Flying, Bug, Rock and Fairy moves, resist Grass, Ground, Ghost and Dark moves and are immune to Psychic moves.
The balance is even: 5 weaknesses and 5 resistances or immunities.
Bug moves are super effective against Grass, Psychic and Dark and not very effective against Fire, Fighting, Poison, Flying, Ghost, Steel and Fairy. Dark moves are super effective against Psychic and Ghost and not very effective against Fighting, Dark and Fairy.
To beat these Pokémon, your best pick is Fire, Flying and Bug moves. Avoid Grass, Ground, Ghost and Dark moves, which deal little or no damage.
There is 1 Pokémon with this combination, such as Lokix.