Even his power to control and use spiritual energy to attack wouldn't be enough to make up for the difference in their capabilities. In other words, he would be thoroughly defeated with no hope of being able to win, much less survive if they were mortal enemies.
"Even if he doesn't break through the limit of martial arts, he can still stack different types of body cultivation methods and martial art techniques. That way, he would be unbeatable by any mortal martial artist." Yoze's heart tightened as the possibility that there were going to be immortals and demons that knew martial arts had increased dramatically.
"I guess I don't need to give you my backstory since everyone is doing it for me. But I'll give you the cliff notes so that we can be acquaintances."
"My name is Geo Stone, and I was a well-known Blood Master rank martial artist in my small town before I was discovered by one of the traveling immortals from the Immortal Shadow Sect."