The battle between the Fourth Realm life forms flooded the Emptiness with ice, fire, and darkness. The power of end in the Thanatos Eye repeatedly clashed with the heat and cold from the Ice Roc and Fire King.
The powers the trio unleashed were so immense that they overcame the veil that was the massive waves of chaos around them, allowing other powerful life forms in the Emptiness to detect them.
The Ice Roc and Fire Kings were strong but not so much as to deter all the Fourth Realm life forms that felt their might. However, none of those who felt the Samsara Thearch's power dared to get anywhere near that battlefield.
Neither the Samsara Thearch, Ice Roc, or Fire Kings had the time or energy to bother about distant Rank 10 life forms, as their fight had reached its zenith, each unleashing all the power inside their bodies and souls.