2. Decay
Decay is a very cool character, both in terms of her powers and her appearance, who first appeared in Wonder Woman #3 (Vol. 2) in 1987. She came to be when Phobos, the god of fear, moulded a statue out of material taken from Medusa's heart and had it delivered to the house of Vanessa Kapatelis - a friend of Wonder Woman's who was letting her stay at her house as she adapted to life away from Themyscira. The statue came to life in Vanessa's hands, ageing her rapidly and bringing her in to conflict with Wonder Woman herself. Decay is also an adept physical combatant who is physically very durable and has the ability to fly. She also has the ability to use her breath on her victims which causes them to turn to dust. She would look fantastic in a live action movie and would provide a very unique threat to Wonder Woman.