The three horns that extend from its beak attest to its power. The leader has the biggest horns.
– Pokemon Diamond Pokedex
Empoleon is the fully evolved form of the 4th Gen starter. I picked Piplup in my Platinum game, so I had an Empoleon named Pingu. Empoleon’s typing of Water/Steel is unique, the combination is pretty good I think; the Steel adds a lot of resistances, though it adds the unfortunate weaknesses to Ground and Fighting.