For the strength of Su Xin, the Great Joy Arhat only found it somewhat troublesome, but definitely not to the extent of dread.
Su Xin had indeed killed two True Martial realm powerhouses, but what sort of beings were those two? They were merely frail and weak.
Moge had already been seriously injured by Sonam Tsering by the time Su Xin and others took action, so they merely picked up an easy opportunity.
And Xiao Tian'ao, whose lifespan was already nearly exhausted, what was so strange about being slain by Su Xin and his companions?
It could be said that even if Su Xin gathered all those who had assisted him in slaying the True Martial realm powerhouses to attack the Great Joy Arhat together, he would not be afraid.
In his prime, the strength of a True Martial realm powerhouse was beyond their imagination. Since Su Xin dared to come this time, the Great Joy Arhat had already prepared to ensure that his journey was one-way.