#638, #639, and #640 in the National Pokédex, Cobalion, Terrakion, & Virizion are the Iron Will, Cavern and Grassland Pokémon, respectively. They are three of the four “Swords of Justice,” Pokémon that protect the environment from humans. Legend tells of the three ending a war between ancient Unovan factions to preserve peace. They are Steel, Rock, and Grass-types, respectively, as well as all of them having a secondary Fighting-type.