I made up a quirk that I think is a good one. It's called Toxicity. So whoever has this quirk can make anything out of nuclear lava. Small things dont take alot of energy, medium take a little energy and big things take a lot of energy. The person with the quirk can also create things from the ground, so they can make the ground nuclear lava. They are also able to make creatures out of their body. You can make things on your body out of it but you will get burned without your hero costume. The drawbacks are that your skin will become itchy and you will feel like your burning in fire.