In fact, Su Xuan is indeed summoning, or rather it's not quite summoning as he doesn't actually understand how to communicate with wolves. Li Fan had once studied how wolves communicate based on frequency. In emergencies, they emit very urgent howls, and what Su Xuan is mimicking now is the frequency in such an emergency, accelerating rapidly, all to attract the real wolf pack. The dozen or so wolves earlier were just the vanguard; the real main force is still behind!
At the beginning, Su Xuan emitted the howls multiple times, but got no response. After emitting a series of melodious and urgent calls again, suddenly the entire desert seemed to be filled with wolves. From afar, a massive dust storm rolled in from where Su Xuan had descended earlier, an intimidating scale and momentum.
"Ow..."
Immediately following, there was a continuous howl of wolves, as the genuine wolf pack surged ahead.
"Wolf pack, it's a wolf pack!"
