A complicated expression appeared on Cain's face as he felt those gazes full of killing intent. His training in the Legendary Class Soul Devourer and the Eye of Gluttony made him very sensitive to the souls of others, which was why he was able to detect the irregularities in the energy pools of the Lynch Kingdom's Sky Masters and Sky Lords.
Being gazed at by an army full of Legends would have shaken the will and spirit of anyone else, but Cain was someone who had led an entire world in a war against a force much stronger than the Lynch Kingdom, so his expression remained impervious.
Of course, the fact he was not afraid did not mean he wanted to draw attention. Cain knew that his words would make him a target, and he would not have spoken if not for seeing the morale of the Trinity Kingdom's forces about to shatter.