How a long name is assembled
A Chinese technique name stacks short parts: a number, a big image, an element, an action and an art ending. 九幽冰封诀 is Nine Netherworlds, Ice, Seal and Formula. A grandness setting picks between two and five parts. Details lists each part with its character, pinyin and meaning, which helps when a translator needs a glossary.
Why the names sound so big
Many readers joke that technique names are huge. Part of the habit has roots in tradition, since Chinese martial arts have styles named after animals, philosophy, myths and legends. Part is code: Nine (九) is for the most powerful, peak-tier techniques, and Ten Thousand (万) marks world-shaking ones. Keep a long name for a finishing move, and give basics short names.
Endings and traps
The ending sets the feel. 诀 (jue) is a formula, a short verse to memorize. 经 (jing) is a scripture and suggests an ancient orthodox path. 术 (shu) is a practical skill. 禁术 (jinshu) is a forbidden art. Five Thunders Art 五雷诀 is a classical Daoist technique, while Forbidden Art is a stock fiction phrase.
Two parts raise flags. Cleave (劈, pi) sounds like the English word "pee". The number Four (四) sounds like the word for death in Chinese, so some readers see bad luck. In Korean mode, Plum Blossom 매화, Black Dragon 흑룡 and Azure Dragon 청룡 are overused images.