Chen Fei originally used several decades to improve by one stage in the Rule Integration Realm, which was already incredibly fast, and now it would be even faster!
Moreover, directly enhancing the skill level of the rules meant that Chen Fei could break free from the constraints of martial arts. As long as he mastered one rule particle first, he could begin cultivating that rule in a simplified manner.
The only issue might be the lack of corresponding martial arts support, which could lead to weak control skills and an inability to fully unleash the power of the rules.
Originally, Chen Fei had 180,000 low-grade Primordial Crystals on him. After simplifying the martial arts and the Space Secondary Rules, he was left with 140,000.
Definitely, 100,000 would be needed for the Sixth Rank Celestial Suppression, which was currently Chen Fei's most powerful reliance, being a main rule of power and incomparable to other martial arts.