In the mini-series, Underworld Unleashed, The Trickster remarks, "When supervillains want to scare each other, they tell Joker stories". As far as truth about Joker’s personality, one word sums him up, unpredictable. One day, the Joker may be a harmless clown, to others he can become a crazy, maniacal, lunatic, psychotic, homicidal, psychopathic, ruthless, sadistic, manipulative, intelligent and diabolical serial-killer and master criminal who wants nothing but chaos and anarchy wherever he goes