GroundDragon
Ground and Dragon types: weaknesses, resistances and Pokémon
Ground and Dragon Pokémon take quadruple damage from Ice moves, take double damage from Dragon and Fairy moves, resist Fire, Poison and Rock moves and are immune to Electric moves.
The balance is even: 3 weaknesses and 4 resistances or immunities.
Ground moves are super effective against Fire, Electric, Poison, Rock and Steel and not very effective against Grass and Bug. Dragon moves are super effective against Dragon and not very effective against Steel.
To beat these Pokémon, your best pick is Ice moves. Avoid Fire, Poison, Rock and Electric moves, which deal little or no damage.
There are 6 Pokémon with this combination, such as Vibrava, Flygon, Gible and Gabite.