6. Not Only Can She Produce Cold, She Can Absorb Heat
Killer Frosts calling card might be freezing people and creating projectiles out of ice but she is no one-trick pony. Across every incarnation, the real source of her powers is that shes able to absorb heat and turn it into cold, strengthening herself and weakening others in the process. Her most modern self feels these effects much more drastically, operating like a heat vampire. She craves the warmth and seeks to take it from anyone she can, creating a much more unstable, violent villain, one who would drain the life from innocent bystanders rather than simply freeze them. The best villains are often a dark inversion on the heroes they face, so it makes sense why Killer Frost, like Captain Cold, pairs up so nicely against The Flash. Though cold and speed dont obviously go together, her ability to slow things down and drain away heat immediately counteracts the inertia and speed that The Flash is famous for, thus making her a dynamic opposite.