Bandit King's Boundless Collection operated in the same manner as how Araeyn managed the Null Remnants with his AUTHORITY. Its GeoScape was smothered by the darkness Skullius had released, but the plethora of colossal, glowing items remained, drifting about.
They each represented an aspect of reality basic or otherwise, that Kenno had been exposed to – gravity, Distorted Gravity, time, space, Stagnant Space, and many more. Even without his Territory, Kenno could control these around his target, but with it, his prowess was raised greatly. Of course, as a mere mortal, he couldn't hope to kill a Deity by affecting them with these aspects. Skullius had even implemented the Womb to hold his Territory together, in case the Deity decided to thrash it.
This didn't mean Kenno was useless in this case, however.