aggron
steelrock
The Pokémon aggron with number #0306 was discovered since the 3 generation. It has a height of 2.1 m and a weight of 360 kg. Its ability is Steinhaupt and its color is gray.
Source: Youtube; "Pokémon Theme Opening (Multi-Language) | Pokémon the Series" (Channel: "The Official Pokémon YouTube channel")