Brilliant.But perhaps during N0, this power went out of control, either because someone exploited it, or it happened unintentionally. Now, as I said before, I always believed that there's more to the name Kubera than its original intended power, like it acquired some of Ananta's power or something else. If that's the case, if someone managed to find and exploit the Power of the Name in N0, this may have caused the Cataclysm, until the Name got transferred to Leez to get sealed again (or something like that). Visnu then separated the races into different realms, specifically isolate the human realm where the Name still remained, to prevent any of the more powerful races from controlling it again. This was the excuse on the surface, however, but in truth, he had things planned to break this chain, making Leez the last to ever bear the name Kubera.
Also, we know that, among Gandharva, Maruna and Kubera, it was Kubera's original plan to kill the power of the name, Gandharva is helping him to open a gate to the sura world and Maruna needs to reunite with his siblings (killing the human with the power of the name for they cannot reunite if she exists, plus Kubera agreed to find his siblings once achieved his goal). Just what is Sagara doing there? Why is she after the power of name? As Maruna said, she has to gain something from it, and we know she is always after power, and that she is doing what she is to gain power for her clan. Sagara could be also looking for the power of the name to kill the human who bears it, unseal it again and, given that she knows how it works, find a way to use it. Why else having to bother looking after the power of the name and kill a human?