Given Yan Ao's current mental strength, he could condense at most two sigils in a single night. Last night, before setting out, aside from a Vajra Sigil, he had condensed an extra Hou Feng Sigil.
Unlike the Vajra Sigil, which strengthened physical power, the Hou Feng Sigil allowed Yan Ao to control the element of wind. The cyan light he had just fired was a Wind Arrow unleashed through the power of the Hou Feng Sigil.
Yet, seeing that a single arrow had failed to shatter the earthen jar, Yan Ao inwardly cursed his bad luck.
Chapter 42