What is the weakness of Garchomp?

Garchomp has a weakness to ice, fairy and dragon attacks, each at a multiplier of four times the initial damage. Pokémon resistant to its attack are bug, flying and grass types.

Garchomp is the third evolution of the Pokémon Gible, which can be found in Pokémon Diamond. It is obtainable by battling a Gible to level 24 to evolve it into Gabite, and then battling the Gabite until level 48.

Garchomp is a dragon/ground type Pokémon that has many defensive benefits. It retains these attributes all the way through its mega evolution, which is Mega Garchomp. Mega Garchomp can only be evolved with the use of the garchompite mega stone.