They are extremely adept at sword controlling techniques. All of their magic tools and magic treasures were various types of differently sized swords. The sect's the True Absolute Sword Arts are incisive protecting arts and widely known throughout the country.
Ancient Sword Sect recruited mostly cultivators with aptitude towards their sword arts. Hence, they had the fewest disciples of the three sects.
Sword Trial Assembly
When spies from Righteous Dao Alliance and Six Devil Dao Sects within the three sects made move to acquire the Spirit Well Tree, the three sects were ready, because they knew about infiltrations. They aware of Old man Wei. Elder Child Fire Dragon himself led the attack against the spies and then faced Truelord Heavenfiend. Still, the two Nascent Soul elders Cheng Tiankun and Lu Luo and Core Formation cultivators of the Drifting Cloud Sect and the three sect fell into an ambush by Devil Dao's Thousand Illusions Sect and the Heavenly Fiend Sect. Because of involvement of Truelord Heavenfiend, Du Dong managed to escape with Wine Nectar. Later, they found out that Wine Nectar didn't help Righteous Dao Alliance and Six Devil Dao Sects.
Number One Sect
After Jin Wuhuan learnt about Han Li's rise in fame, he wanted to meet him. Once, he find out Han Li was at mid Nascent Soul stage, Jin Wuhuan was interested in Han Li's abilities. He wanted to fight Han Li for a ranking contests between their sects. As Grand Elder intended to finish the battle quickly with his Spring Thread Execution, his 3 flying swords were sealed by Celestial Ice Flames. Jin Wuhuan conceded defeat and the Drifting Cloud Sect became the number one sect in the Dreamcloud Mountains.
Emergence of the Fourth Great Cultivator
After about 100 years Han Li returned to the Drifting Cloud Sect. A grand ceremony was held to celebrate the emergence of another late Nascent Soul stage cultivator within the Heavenly South. Over 100 Nascent Soul cultivators and many more Core Formation cultivators attended that event. Han Li only appeared for a short while on the first day of the ceremony. Han Li had challenged both Wei Wuya and Old Devil Concord at once and easily defeated them. After news about Han Li defeating Wei Wuya, Old Devil Concord and Master Sunreach spread, Han Li gained a reputation as the number one cultivator in the Heavenly South. Subsequently, the Drifting Cloud Sect's influence began to expand drastically and they had taken over most of the State of Xi. All of the other cultivation sects in the State of Xi either had to concede to them, or re-establish their sects in another nation. The Ancient Sword Sect and the Hundred Possibilities Sect also expanded a bit, but they had virtually become subsidiaries to the Drifting Cloud Sect.