Golduck

Like many first generation Pokemon, Golduck is blessed with a cool design and a generous movepool, but is held back by a lackluster stat distribution. Golduck's base 95 Special Attack is good, but not great, and the rest of its stats are decidedly average, making it difficult for Golduck to compete with its more specialized rivals. Luckily, Golduck does have a couple of niches in UU that help differentiate it from other Water-types. Cloud Nine is an exclusive ability that turns Golduck into a unique counter to devastating Swift Swim and Chlorophyll sweepers, while Calm Mind makes Golduck one of the few UU Water-types capable of sweeping through boosting its Special Attack. Although it's not the most threatening Pokemon around, Golduck can fill an important role without requiring much support, making it a solid choice for a variety of offensive teams.