In the previous life, ascending to Level 4 required several conditions, the most important being the possession of four abilities, a hidden attribute, and at least one awakening key.
Having four abilities was purely dependent on luck, as some people are unable to merge four different crystal cores, making it impossible to possess four abilities in their lifetime. Not even Wang Tao could solve this issue.
Having a hidden attribute was also a matter of luck, though there were things that could grant hidden attributes, they were hard to obtain and extremely rare.
As for the final awakening key, it was relatively simple; one just needed to personally kill a Level 4 Lord. But the problem was, there was a chance of failure, and if luck was bad and one kept failing, it could mean never awakening... This was indeed up to luck.
So, overall, in the previous life, ascending to Level 4 relied heavily on luck. If the luck was bad, no amount of effort would be helpful.
