The Dragon Ball can be considered the condensed version of the Dragon Race Essence. It carries some properties of the Racial Essence, but its effects fall far short of the true Racial Essence.
The magic power that constitutes the Dragon Ball is mixed with traces of the characteristic magic power of a giant dragon from when it was alive, being extremely unruly.
If an ordinary person wants to absorb the Dragon Ball, the danger is quite high. The rejection reaction can cause a disorder of internal magic power, making it impossible to use magic or skills for a period.
But if used on a demon, the danger is much smaller.
Many demons have the ability to acquire magic power from other creatures to strengthen themselves.
As long as they don't ingest too much at once, demons can still make use of most of the absorbed magic power.
So, Yang Yu chose the Dragon Ball to strengthen He Meng.
