Harley Quinn is an assistant to Batman's enemy and a formidable supervillain. Despite her playful demeanor, she should not be underestimated, as her weapon, a mallet, is surprisingly effective. She possesses incredible strength, surpassing even that of an Olympic-level athlete. Furthermore, Harley is a skilled fighter who incorporates impressive gymnastic abilities into her combat style. Her unique combination of strength and agility makes her a formidable opponent to watch out for.