This Ability Is a Bit Unorthodox

I was just an ordinary programmer until I awakened to an extremely unorthodox power system. When others fight: one punch breaks the mountain. I fight: Make you suddenly want to go to the toilet. Others Duel: Thunderous. My duel: let you tell the truth on the spot. At first I thought this ability was to mess with me. Later I discovered—— It's something I use to mess with other people.