Umbreon

Umbreon is a sleek, black Dark-type Pokémon, an evolution of Eevee, known for its nocturnal nature, red eyes, and glowing yellow rings on its ears, forehead, legs, and tail that intensify in darkness, striking fear into foes as it ambushes prey, sometimes spraying poisonous sweat when agitated, and is a popular, sturdy "stall" Pokémon in battles due to its defenses. Evolved through moonlight exposure, it's a feline/lagomorph hybrid, symbolizing shadow and mystery, making it a fan favorite and valuable in the Pokémon Trading Card Game (TCG).