Lucy is the 5th Youngest of the Loud family, and is a very gloomy and stoic goth girl. Her uncanny ability to suddenly appear in places also applies to the Brawl! Lucy has a variety of moves to startle and creep the opponent. They really won't know what hit em with her teleport!
Lucy is a technical "install" character with short range and light weight, compensating for this with her truly privileged attack speed and being able to alter the attributes of her Special Attacks with her "Scare Mode" gimmick. In skilled hands, her combo game will leave anyone she faces feeling just as gloomy as she is.
By using her Neutral Special Dark Bite she will become coated with an aura indicating she is in either Vampire Mode or Ghost Mode. She can cycle through her modes by biting her opponent an additional time, and it always cycles with Vampire first and then Ghost second. In general, Vampire Mode is used for damage while Ghost Mode is used for additional maneuverability options.
If you're technically minded enough to take advantage of these two modes and to master each of their benefits, Lucy will put any foe you face into an early grave!