Manaphy

While Manaphy is uniquely capable of boosting its Special Attack to the moon and back with Tail Glow, it still faces heavy competition for a team slot as an offensive Water-type from the likes of Azumarill and Keldeo, both of which sport useful secondary typings that allow them to eliminate a wider range of threats. They also have immediate power and access to priority attacks for the former and more Speed for the latter. Furthermore, Manaphy requires dedicated redirection support in order to maximize its potential as a setup sweeper, as well as hail support to be as powerful as possible by spamming Blizzard. Manaphy does, however, set itself apart from other Water-types with its sheer power when using Tail Glow and its ability to beat Grass-types such as Amoonguss.