Su Xin didn't include any sword techniques in the Blood River Divine Skill he taught Qi Long, but finger techniques were included.
After all, swordsmanship could conflict with sabre technique, but not with finger technique.
Although Qi Long wielded a blade, that didn't mean he wouldn't use other martial arts.
As a martial artist who started from nothing, he would use any martial arts technique that proved to be powerful.
Qi Long initially chose to use a blade because the first martial arts skill he obtained was sabre technique, not because he had any particular talent or preference for it.
No one had expected that Qi Long concealed a Blood River Divine Finger after slashing out with his blade.
These two lines of blood were extremely ferocious, aiming straight at the eyes of the Esoteric Buddhist.
During altercations, these Esoteric Buddhists from the west rarely had life or death fights to the uttermost. There are very few who were as ruthless as Qi Long.