This Physical Training Not Only Has a Sword but Also a Brain

He traveled through time, and there was a system with no lower limit. He became the strongest physical practitioner in the world, and he became the strongest swordsman in the world despite not being able to fly with a sword. He often makes sneak attacks or forcefully attacks the strong. He often pretends to be a pig and eats the tiger, leaving the weak at a loss. In short, be careful, this physical training not only has a sword but also a brain. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.