Saci is one of the most well-known tricksters in Brazilian folklore. He is usually described as a small black boy with only one leg, who always wears a red cap and often carries a pipe. He moves quickly through the forests and fields by hopping on his single leg, appearing suddenly and disappearing just as fast.

The red cap he wears is believed to be magical and gives him special powers. With it, Saci can disappear, reappear, and create small whirlwinds that spin through the forest and countryside. Many people say that when a dust whirlwind appears, the Saci may be inside it.

He is famous for his mischievous behavior. He enjoys playing tricks on people and animals, hiding objects, scaring horses, tangling their manes and tails, souring milk, and disturbing travelers passing through the countryside. His laughter and whistles are sometimes heard in the woods, announcing his presence.

Although he can cause trouble, Saci is rarely considered truly evil. Most of his tricks are playful and meant to confuse or amuse himself rather than seriously harm anyone.

According to the legend, the only way to capture Saci is to trap the whirlwind where he appears and steal his red cap. Without the cap, he loses his magical powers and can be controlled.

Because of his tricks, mysterious appearances, and playful personality, Saci became one of the most iconic and recognizable characters in Brazilian folklore.