Success!

After August gave his instruction to Rhea, she began the pre-planned procedure.

[The first step is to reach the 15-point attribute in Spirit Power. To do this, absorbing one high-grade wind elemental core is sufficient. However, a Spirit Power of 16 would stabilize your power and put you on a strong footing so you will need to absorb three high-grade wind elemental cores…] 

As Rhea continued her outlining the elevation procedure, August was not idle. As he began absorbing the cores. The light green elemental core was shining with a bright ferocious light as it threatened to erupt with a strong blast if any attempts were made to tamper with it. 

However the moment his hand touched it, the ferocious streams of air around it immediately ceased, as if it was a wild boar that suddenly turned docile and behaved like a helpless, innocent deer the moment the sharp, and large paws of a huge tiger was placed upon it.