Warmaisach
I think he’s gonna go back to the sword in the Hibye, he had a feeling it could help him perfect his sword style before, but he never had the time! Or, he’ll learn the life concepts. The only way to truly surpass Lucius mastery of Anti-Magic is to combine it with the concept of life. Lucius didn’t fuse it with death, but with life, so Shang could go a step further by fusing it with both. However, is low affinity and terrible personnality are probably a huge barrier to understanding the life concepts. The sword seems the better way considering he doesn’t have that much time left
Only 2 possible level 5 concepts at this moment with 450 years remaining, death concept or essential warrior kings concept.Since he has comprehended sword transformation required for essential warrior king concept I would bet on this as death concept level 5 is only possible with the help of judgement palace .
Many people think he'll learn lvl 5 death concept, I doubt he will. It's probably going to be something relating to the sword like a non essential equipment of lvl 5 concept or he will learn something entirely new different from his current 4 element. Death concepts are ridiculously difficult to lear. But if the level 5 concept of death is related to the soul, then he'll probably learn it much quicker than others.