However, Dalvin's intuition told him it was likely the case of the low-quality technique. The Earthquake Fist was the lowest of the low, a publicly circulated martial arts technique that could be practiced by any dog or cat.
Those martial arts manuals with specialized techniques that came with weapons training, qigong, special skills or abilities, and sometimes even elemental arts, were likely either privatized in various dojos or not at all easy to acquire.
Here in the Immortal Locking Prison, it was next to impossible for him to even get a whiff of the location of such potent goods. He would have to either improvise somehow, be lucky to find a better technique on another corpse, or trade for one.