fiend

"The villain of the story was a true fiend, causing chaos wherever he went."

"She felt like a fiend for having tricked her friend."

"In the old tales, the fiend would come at night to steal the children's dreams."

"He fiended for power, leading him to make unethical decisions."

"When cornered, she fiended to escape, showing no mercy."

"The movie depicted how the hero fiended against all odds."