Chapter 71: [Mastery: Proficiency in Multiple Martial Arts]

The only problem with Sterl's plan was—

Once he learned an arcane skill and then enhanced it, the difficulty of training would not be low. Accumulating proficiency wouldn't be that easy.

Sterl had a strategy for this. He could continue to farm places like the Death Village to accumulate blood force.

Including [Mastery: Proficiency in Multiple Martial Arts], Sterl could use blood force to brute-force his proficiency in arcane skills.

Blood force itself...