@H i s o k a not regressed , but reincarnated , he probably died many times and many experts from other world possed his body , but they couldn't take it either, even murlin leaders died , the real question is , who was in the martal king's body before they switched, imagine just like mc , some reincarnated mage was actually inside the material g** body , and now he is back in a mage body , and if he was a even more powerful mage like 12 circle or something, there is a possibility that now he will actually sarpass mc , with training and his knowledge of magic , but i doubt it will happen....