Tail Glow

From Pokemon - Wiki on Neoseeker

Tail Glow is a Bug Type move created in Generation III, It was a 'Special' equivalent to Swords Dance and was exclusive to Volbeat(Although Smeargle, like any other move, could sketch it). Due to these Pokemon having lackluster stats, it was seldom seen. In the Generation IV one other Pokemon, Manaphy, gained it, it proved too powerful thanks to this move and became an Uber. An Identical move, Nasty Plot, was also created and was available to many more Pokemon.