Footwork: He easily outpaces immensely faster foes
Dense Experience: He simply "out-experiences" older beings
Superior Skill: Allows him to bypass esoteric abilities
Userプロンプト
His unique swordsmanship was made since when his Fantasy World decided to draft him in a war in some sci-fi world, he accidentally got trapped in a glitchy game world for 100 trillion years where he was forced to kill & be killed by thousands of toxic snakes & centipedes who get stronger each loop
This also gave him predictive synesthesia, & now he sees future attacks as "snakes" or "centipedes"