Aggron

Aggron (コドラ Kodora) is a / type Pokémon that was introduced in Generation III. It evolves from Lairon and is the final evolution of Aron.

Naming
Its name is probably composed of the words "aggressive" or "aggravate" and "iron".

Biological characteristics
Aggron is best described as a monster. With iron plates over its entire body, horns, and claws; this Pokémon was built for battle.it also looks a little like a cross of a steel dragon and a cave panting/castle wall.