Naganadel

Naganadel (Japanese: アーゴヨン Agoyon) is a dual-type Poison/Dragon Pokémon introduced in Generation VII in Pokémon Ultra Sun and Ultra Moon.

It evolves from Poipole when leveled up while knowing Dragon Pulse.

It is one of the Ultra Beasts and is known by the code name UB Stinger (Japanese: ＵＢ：ＳＴＩＮＧＥＲ  UB: Stinger).