Xuanyuan Sword Master: from Useless to Eternal Number One

The soul of a genius with both medical and physics skills traveled through the world of martial arts and became a bullied outsider of the Qingyun Sect. When he was about to die, he awakened the Xuan Yuan Sword Heart System and changed his life against the will of heaven! Systematically deduce the perfect skills, yellow-level martial arts transform into magic; Sword Heart sees through all the flaws, and killing enemies across levels is like searching for objects; hunting for treasures in secret realms, ancient inheritance, repairing magic weapons, all opportunities are in the bag; killing powerful enemies, devouring sword intent, Sword Heart breaks through all the way to the Dao-killing realm! From sweeping through the outer sect at the fourth level of body tempering, to beheading the Tongxuan elder with one sword; from seizing treasures in the secret realm to shocking the sect, to reaching the top of the unparalleled core trials; and even being ordered to lead a team to go on an expedition, using the Tongxuan realm body to fight the two kings, killing the demon lord with one sword, severely injuring the barbarian king, creating the legend of "Border Sword Lord"! Use the system to break all laws, and use the sword to determine the world. Let's see Lin Xuan, with the power of the system, fight his way to the sky in the war of troubled times, sweep away the barbarians, wipe out the devil, and finally become the supreme sword master who shocked Dayong! (The manuscript is sufficient, please support)