User blog comment:Xilinoc/Ch. 610 - Mausoleum of Skulls/@comment-5693502-20141218192213/@comment-26420452-20141218225934

Well, we've already seen that he can control blackness/darkness of everything. This Kidō apparently allows him to take even the blackness in the future. 100 years from now, there will be 100 nights with no darkness. I can imagine the level of perplexity of Shinigami and common souls during the first of those nights.