How did TC kill Nihilith? First, TC FORCEFULLY gives Nihilith a form, meaning, and structure. Then, TC strips Nihilith of all paradoxes, contradictions, refutes, and complications. Finally, TC kills Nihilith by using raw strength to split Nihilith into two.
HUGE credits @Homie_Nuke_Mark1 for Nihilith full title: what TC would do if he saw Nihilith outside of his own verse non-canon until @Homie_Nuke_Mark1 approves that TC is literally capable of destroying nihilith like this