Pierce his Heart!
Nial's heart was empty and his mind was blank. He had no idea what was actually going on and the only thing he felt was uncontrollable anger.
Something had snatched the reins from him, but it was neither the Late God of Darkness nor the dark energy.
A being he had never encountered before had found him within the City of Trials, the only place where the void borders of the Universes were ruled by different laws.
It forcefully created a link to him and it had waited until the very moment when Nial's mind was the most vulnerable.
This moment occurred when he rushed to Kaeldur fearing that his trusted ally had actually died, not just in the City of Trials, but a true death.
Only then did it strike, overthrowing Nial and forcefully making him release a tremendous amount of mana while unleashing his [Awakening of the Prymal] ability.