As an avid lover of the web novel Quan Zhi Fa Shi (全职法师), mere words cannot express how disappointed I am with the animated ONA version. The only reason I am trying to enjoy the 3rd season is because I like the 1st and 2nd season that got me into the series and because i fell in love with the novel.
In the anime(ONA), everything from the animation, sound effect, music, plot pacing, and character interaction is low quality. It was like someone took a shit and tried to mold an anime out of it. What am i trying to say is the anime does not
do the masterpiece of a novel that is 全职法师 any justice. Although it is extreme analogy, the ONA did made what was an excellent source material into a less than mediocre anime. It seems low budget and lack of staff members is the source of the problem.
The web novel 全职法师, containing 2456 chapters, is an absolute masterpiece.
There are many things i love about 全职法师:
-very capable minded, savagely funny protagonist
-interesting fights and character interactions
-the world building
-very detailed depiction of how political and full of scheme a society that revolves around power, money, and social status can be
-every story arc is interesting and meaningful. some even has unexpected plot twist
If there is one questionable thing i must say about the entire novel plot, it would be the beginning. The protagonist wakes up in the world in a world where magic and monster exist. The high school follows magic has its core curriculum. He was pretty much given a cheat ability of being born a double element mage and has a special spiral necklace, which helps him "level up" like a madman.
The web novel doesn't actually get good until the beginning of this season (chapter 121 of the translated version called Versatile Mage), so I recommend you watch season 1 and 2 of the anime before reading the novel.
Unfortunately, the series is still being translated by an unknown author by the name of itsTofu from Gravity Tales translations. As of 11/13/2018, only 227 of the 2456 chapters has been translated. He translates 1 chapter per day. If you like the first 2 seasons of Quanzhi Fashi, I strongly urge you to read the novel and watch the anime only for fun.