The sage and the crimson scorpion(rewrite)

The great sage, one of the most powerful beings in the world. He could wield all 6 elements of magic like it was nothing and held multiple witch factors. Such a being disappeared off of the face of the world 400 years ago. However, he has returned without his previous power or memories, but still retaining his reputation. All this 'sage' wants is to travel with his companion.