Those from the Sword Extinction Sect were all experts in sword techniques, possessing Sword-type Astral Souls as well as a comprehension of the Mandate of Swords.
Swords, because of their sharpness, were a huge boost to one’s attack power. A cultivator at the sixth level of Yuanfu from the Sword Extinction Sect using sword-type innate techniques would have sufficient combat prowess to fight even against those from the seventh, eighth or even ninth level of Yuanfu. This was also the reason why Sword Cultivators are often said to have the highest attack power.
Yet, Qin Wentian actually used his bare hands to catch hold of the incomparably sharp swords.