His heart pounded wildly, and suddenly he thought of the third spell that the Cold Mountain Wanderer hadn't taught them. He figured it must be the secret to reversing transformations, restoring True Qi, and killing someone from thousands of miles away!
Once he realized this, even more thoughts popped into his head.
"That breath of True Qi could not only transform into Sword Qi but also into fire, water, thunder, even the Taotie Devouring Heaven Technique!"
"I could stand hundreds of miles away, or even farther, in a nearly peak state, ready to duel or assassinate my adversary!"
"The spell the Cold Mountain Wanderer didn't teach me is the key! No, not a spell, it's a Divine Skill!"
Spells and Divine Skills are different. Spells require the use of talismans and inscriptions to cast, often borrowing power from elsewhere, such as the various demons' and ghosts' patterns and names inscribed on the talismans. Different spells borrow power from different gods.