Class F Definition? I Tamper with the Laws of All Things!

I define the rules, how do you respond? High martial arts city + conceptual rule-based superpowers + the mastermind behind the scenes. The protagonist awakens the most useless conceptual power [definition]. In the early stage, he could only define "an apple is a banana" and was laughed at by everyone. However, he relied on his wisdom to make full use of his useless abilities: "Definition: My next attack ignores defense", "Definition: Death is prohibited in this space." When the demon god from another world came and the world's strongest men were defeated, he wrote lightly: "Definition: There is no god in this world." From then on, he defined all things behind the scenes, controlled civilization, and became the master of concepts that even the gods feared.