Use "mischief-making" in a sentence

1. Of these, the most significant is the option warrant—a device which during the years prior to 1929 developed into a financial instrument of major importance and tremendous mischief-making powers

2. “Come, come! This is intolerable! You had better stop, you little mischief-making wretch!” cried Varia

3. She was a bright, butterfly sort of creature, whose veil of innocence and apparent ingenuousness hid a nature which delighted in sacrificing dignity and reserve to her mischief-making propensities