Staryu

Staryu is a rare Water-type Pokémon from Kanto region. It evolves into Starmie when fed with 50 candies.

Pokédex description
Star Shape Pokémon

''Staryu's center section has an organ called the core that shines bright red. If you go to a beach toward the end of summer, the glowing cores of these Pokémon look like the stars in the sky.''

Evolution family
Staryu is the part of a two-member family.

Trivia

 * On August, 2016, its attack Quick Attack was replaced with Tackle, which has higher DPS.