Beast Masters have always had a love-hate relationship with those skills and unique traits that require private effort.
The "Heaven Shooting" is exactly the kind of existence that requires effort in private.
First, if you want the unique trait "Heaven Shooting" to come into play, you need to refine tree creatures.
"Heaven Shooting" requires the Dense Forest Angel itself to refine tree creatures of high age.
The better the bloodline of the tree creature and the older it is, the stronger the "Heaven Shooting" crafted from it will be.
The Dense Forest Angel can command these tree creatures transformed into shooting spears to fight for it.
Refining tree creatures only consumes the energy of the Dense Forest Angel.
However, after refining them into shooting spears, it is necessary to enhance these tree creatures.
To make the strength of these tree creatures keep up with the Dense Forest Angel's pace requires much more resources.