By entering the Melind dungeon, Nial planned to start from scratch once again.
This didn't mean that he would forget his past or do something extremely stupid.
Rather, it meant that he wanted to test his current capabilities with a clear mind in order to evaluate his strengths and weaknesses.
Thus did not only include his combat strength, but also his comprehension, and the depth of his knowledge.
In the end, all of his characteristics should be rather low, with the sole exception being his comprehension and everything concerning the control of mana.
By assessing himself, he should be able to find out more about his own persona, the things he was lacking the most, what was the most important to fix right away, and a plan to tend to all the issues one by one.