The stronger the talent energy, the more energy it requires.
Back when Big Black Face broke through to the Unbreakable Realm Second Star, he consumed around one million Earth Core Energy Crystals.
Qin Shou believed he wouldn't be worse than Su Liang.
As for the Star Power within his body...
In front of a monster of the same level, using Star Power could only allow self-preservation. To counterattack effectively, he still needed talent ability.
Talent energy absorbs enough energy crystals, undergoing a transformation, becoming more powerful, and triggering a qualitative change in the body's overall attributes.
One of the effects of Constant Star Energy Crystals is playing a decisive role when talent energy reaches its critical point.
The stronger the cultivator's potential, the better the effect of Constant Star Energy Crystals, and sometimes even no auxiliary crystals are needed.
If potential is average or poor, then Breakthrough Potion would be required.