In BW029 A group of Litwick appeared where they, along with a Lampent tried to attack Ash and friends, Jessie, James and Meowth. When Team Rocket sought to make the abandoned mansion the Litwck inhabited into their Unova headquarters, the Litwick decided to play them for the fools they are and suck out their life force to keep their candles burning. However, they were stopped.
Litwick pretends to guide people so it can suck out their life force using the light on its head.
Litwick resembles a small candle.
The flames of this Pokémon's line are a play on the depiction of ghosts/spirits appearing as ghastly flames/lights in Japanese culture.
Litwick's name is a combination of lit and wick.
Litwick's cry starts off high pitched but echoes near the end almost sounding like its in a cave.
Litwick's "hairstyle" appears to be based off the wax that drips off a candle while burning.
Despite being known to leech people's life energy, it can not learn any draining moves.