Apart from the eighteen of them, there were also deeply hidden agents within the palace that would coordinate with them.
If they failed, it would be a significant blow to Yanrong.
In this era that valued cultivation, for any dynasty, powerful cultivators were the essence of the dynasty.
On the battlefield, instances of both sides using masters to assassinate generals were numerous. Many generals at least had a master of the Great Profound Sect Master Realm stationed with them, if not being powerful martial cultivators themselves.
The same was true for the soldiers; well-trained soldiers, warriors, and those without any cultivation were entirely on different levels.
Sometimes, powerful cultivators could completely turn the tide of battle.
Even capable of standing alone against ten thousand troops.