The Summerween Trickster is a mysterious creature who is part of Gravity Falls local legend. He is said to punish children who do not show proper respect to the Summerween spirit. He does this by devouring them. He likes to give people who disrespect Summerween a chance, though. In exchange for five hundred pieces of candy, he will spare their lives. Granted, if they fail this, he will chase and devour them at any cost. He actually hates knock-knock jokes for some reason.