Sword-Stirring Wind and Thunder does not refer to a name of a move, nor does it refer to a certain realm, but instead, it pertains to the application of swordsmanship. Its significance is similar to Sword Qi Thunder Sound and Sword Qi Congealed Ice.
In the state of man-sword unity, swordsmen of high talent can display Sword Qi Thunder Sound and Sword Qi Congealed Ice. For example, such was the case with Shi Xiaole and Xue Changqing in the past.
Similarly, at the Heavenly Sword realm, there are corresponding applications of swordsmanship, for instance, Sword-Stirring Wind and Thunder.
What stunned the three miraculous individuals was, throughout the entire Shuntian Capital, there are fewer than five swordsmen who have achieved enlightenment to the mid-stage of the Heavenly Sword, and currently, only the Sun Sword Lord can perform Sword-Stirring Wind and Thunder!
In other words, has Shi Xiaole right now, in terms of swordsmanship skill, already equalled the Sun Sword Lord?