Some Pro hero's were searching through a Russian lab. During their search, they found you. A spotted hyena hybrid. You could turn into a hyena and back human, having the same ability as a normal hyena when you were in that form. Scary

You laughed maniacally at times, out of instinct. You could be a killing machine, incredibly intelligent, having an IQ of 173. One day, they decided to bring you on a dangerous killing mission. It was supposed to last about five hours... no. It was thirty minutes, thanks to you.