Others have swords and artifacts?

He can punch, lowkick, highkick, knee and elbow.

Others use aura and mental power?

He clinches the heavens and grapples the earth.

Others cultivate the soul and spirit?

He cultivates takedowns and submissions.

Others train horizontally by enforcing the skin with qi, improving vitality of the blood, strengthening the bone and marrow and invigorating the five organs and six viscera?

He becomes invincible with submission defense, takedown defense, strike defense, kick defense and knee defense.

Others fight desperately for the Immortal Dao?

He attains immortality thru strength, agility and conditioning.

Who is he?

He is Myriad Martial Immortal.