Shoto's Quirk is Half-Cold Half-Hot, which allows him to freeze things with the right side of his body and shoot flames from the left side of his body. After overcoming the reluctance to use his flame powers, he learns different ways to combine both powers effectively. Shoto's quirk has one major drawback, one that can be fatal if ignored. Failing to maintain optimal temperatures for his body can result in either a heat stroke or frostbite depending on too much heat or cold respectively