Umbreon

Umbreon (Japanese: ブラッキー Burakkii) is a -type Pokémon introduced in Generation II.

Physiology
Umbreon is a quadrupedal mammalian Pokémon that resembles a black rabbit or a black fox. It has mainly sleek black fur with luminescent yellow rings encircling its ears and tail, and round yellow circular patterns on its forehead and on each of its upper legs. The rings glow when under the influence of moonlight. Its physical characteristics are vulpine-like, with a short muzzle with a small triangular nose. It has crimson eyes and unlike it's fellow eeveelutions, it also has visible oval shaped pupils colored black. It has a slightly bushy black tail with a single yellow ring encircling its thickest part; the tail thins out at the tip. Umbreon has small sharp fangs, seen when its opens its mouth.

Eevee's much smaller body had been transformed under the influence of the moon's aura. For it to evolve, an Eevee must have full trust and friendship with its trainer during the night (in the games it is the same but Eevee must be leveled up during the night).

Behavior
Umbreon stalks silently during the night, hunting for prey under the cover of darkness. When it senses an enemy's presence, it waits for its enemy to come into range. When it attacks, its rings give off a bright golden light.

Natural abilities
Umbreon can spray a cloud of toxic gas from its sweat glands when agitated. Also, since it's a fully evolved Pokémon, Umbreon can learn the moves Hyper Beam and Giga Impact and even though Umbreon is a -type it is able to learn the move Psychic. Although Umbreon looks small, it has a strong endurance. Its base stats make it a good choice for defensive trainers.

Evolution
Umbreon evolves from Eevee if it achieves a certain level of high friendship and achieves that only at night. In Pokémon XD: Gale of Darkness, you can also evolve Eevee into Umbreon using a Moon Shard.

Anime
Gary Oak's Eevee evolved into an Umbreon shortly before appearing in Power Play!.

In BW004, Ash and company mistake a Tepig for one. Team Rocket's Meowth tried to impersonate an Umbreon, catching the attention of the searchers. Ash found what the "Umbreon" really was: an abandoned Tepig. Ash undid the knot around its snout and it later joined Ash's team.

Trainers with an Umbreon

 * Gary Oak
 * Johanna
 * Virgil

Anime

 * Tamao's Umbreon
 * Johanna's Umbreon
 * Virgil's Umbreon

Trivia

 * Umbreon is the only non -type Pokémon with the ability Synchronize.
 * Umbreon used to be the only pure -type Pokémon in Generation II.
 * Umbreon is one of only nine pure dark-types, The others are Poochyena, Mightyena, Absol, Darkrai, Purrloin, Liepard, Zorua, and Zoroark.
 * Despite it being able to spray poison, it only knows Toxic via TM06 which most Pokémon know. It cannot learn any Poison-type moves via level-up. It isn't even a -type.
 * Umbreon is the first Dark-type Pokémon in National Dex order, and is right next to another one.
 * Umbreon cannot learn any Special moves while leveling up.
 * Umbreon's rings light up in the dark just like the moon.

Origin
Like all Eeveelutions, Umbreon shares traits with various mammalian creatures. It is most likely based on black rabbits and black foxes. Umbreon's Japanese name, Blacky, could be a reference to black cats, as they are considered lucky in Japan. Its rings could represent Egyptian lunar markings and jewelry, associated with the Egyptian goddess Bastet. Its ears are rabbit-like, and it shares some traits with the Moon Hare of Japanese folklore.

Etymology
Umbreon's name originates from Umbra and Eon. Umbra means shade or shadow. Eon means a long period of time. That's because since it is one of the eight evolutions of Eevee, it comes from a "long line of evolutions", or an eon of evolutions.