I Have a Body Full of Passive Skills

“Is the strongest skill in the world one that has to be actively used?” “Wrong! It’s a passive skill!” “What is a passive skill?” “A passive skill is an instant active skill, a lethal move no one would ever guard against, the ultimate trump card known only to the dead!” “Could you put it in simpler terms?” “Breathing Technique, Fortitude, Perception…” “Heh, that’s it?” Xu Xiaoshou tore the galaxy apart with a single sword strike, leaving the world stunned. “…” “You call that a passive skill?” “Mm. Sword Mastery.”