Woah! This should be the final essence energy art he needs right? After all, he seems to be going for a two for each stat + his main Lost Immortal Sutra and this should be his last! The mythical stage is so close, yet so far at the same time...
Imagine this basic mastery over essence energy art = Stone sword's allegiance
Laying the plot armour on pretty thick but ZW is lucking whether he denies it or not