FireDragon
Fire and Dragon types: weaknesses, resistances and Pokémon
Fire and Dragon Pokémon take double damage from Ground, Rock and Dragon moves and resist Fire, Grass, Electric, Bug and Steel moves.
The balance is even: 3 weaknesses and 5 resistances or immunities.
Fire moves are super effective against Grass, Ice, Bug and Steel and not very effective against Fire, Water, Rock and Dragon. Dragon moves are super effective against Dragon and not very effective against Steel.
To beat these Pokémon, your best pick is Ground, Rock and Dragon moves. Avoid Fire, Grass, Electric and Bug moves, which deal little or no damage.
There are 3 Pokémon with this combination, such as Reshiram, Turtonator and Gouging Fire.