Umbreon D

Umbreon is a Dark-type Pokémon introduced in Generation II, evolving from Eevee when leveled up with high friendship during the night. It is one of the eight Eeveelutions, a group of Pokémon renowned for their diverse evolutionary paths from the single Eevee. Umbreon's sleek, dark fur and glowing yellow rings, which are said to intensify when it senses danger, make it a striking figure. It is primarily nocturnal, preferring to hunt in the darkness and using its rings to startle prey or intimidate foes. In the games, Umbreon is known for its high special defense and HP, making it a reliable tank in many teams. It has also made appearances in the anime, most notably as Gary Oak's Pokémon, and is a popular choice among fans for its cool demeanor and elegant design. Its unique evolution method, requiring a specific time of day and friendship level, adds to its mystique and appeal.