Empoleon

Empoleon is a Water/Steel-type Pokémon introduced in the Generation IV games, Pokémon Diamond and Pearl Versions. Empoleon is the final evolution Piplup, and it evolves from Prinplup at level 36. Empoleon is the only Pokémon to be of both the Water and Steel-type.

Empoleon is invulnerable to Poison-type attacks. Its secondary type, Steel, negates its Fire resistance, making Empoleon the only Stage 2 Water-type Starter Pokémon that is not resistant to Fire-type attacks. Empoleon is weak to Electric, Fighting, and Ground-type attacks.

Pokémon Diamond and Pearl Versions / Pokémon Platinum Version
In Pokémon Diamond and Pearl Versions and Pokémon Platinum Version, Empoleon can only be obtained by evolving it from Prinplup, which is also the case in subsequent main Pokémon series titles, although some games require Empoleon or one of its pre-evolved forms to be traded first. Empoleon evolves from Prinplup, and can immediately learn Aqua Jet upon evolving. If Empoleon has a high happiness rating, a Move Tutor in Sinnoh offers to teach it the move Hydro Cannon.

Physical appearance and traits
Empoleon resembles both the royal penguin and emperor penguin. It has metallic edges on its wings and three claws underneath. The appearance of its body gives the impression that it is wearing a tuxedo. On its head, Empoleon has three distinct horns resembling a trident, a symbol associated with. The length of the three horns extending from the beak symbolize an Empoleon's strength. According to one of its Pokédex entries, Empoleon can swim at the speed of a jet boat, and the tips of its wings are sharp enough to destroy entire slabs of drift ice.

Etymology
Empoleon's name is a portmanteau of "", referring to s, and the name. Similarly, Empoleon's Japanese name "Emperte" is a portmanteau of "emperor" and the name "Bonaparte".