Espeon

Espeon (エーフィ, Ēfi, Eifie in original Japanese language versions) is an evolved cat-like form of Eevee that became available with the Japanese release of Pokémon Gold and Silver. An Espeon's fur is used to sense air currents, allowing it to predict the weather, as well as the actions of its opponent in battle. Its forked tail quivers when this occurs. A red jewel rests on its head, and glows whenever Espeon uses its psychic abilities. Espeon are described as being very loyal to their Pokémon trainers once they consider him or her worthy. They are also said to develop precognitive abilities in order to protect their trainers, Espeon become enabled to see into the future to identify potential threats. Eevee evolve into them by having a high happiness level in the day. A Sun Shard can also be used in Pokémon XD. Its name is derived from Esp and -eon, as is followed by every evolution of Eevee.