Because Arid is the strongest Demigod, the geniuses who learn Arid's inheritance in the spire are the most, but those who actually master it are the fewest. The reason is that the Martial Arts created by Arid are not normal at all.
All the Martial Arts require burning one's life force to perform, so their power is extraordinarily strong. Even an ordinary Ultimate Technique Level martial art can exert power comparable to a Middle Tier Ultimate Technique, a Middle Tier can match a High-level Ultimate Technique, and a High-level can rival the legendary Ultimate Technique.
Because of this, the eighteen Ultimate Techniques consist of nine ordinary techniques, eight Middle Tier techniques, and only one High Tier technique.
"Martial Arts that require burning life as the price?"
