A world-ending war was ongoing and Andar knew he did not have much time to experiment, but carving just this small amount to satisfy his curiosity was viable.
With his position, he did not need to be here and he could retreat and advance whenever he wanted. He judged that the danger for him was still within manageable levels and he could proceed without much interference, the darkness that Aharis created around him should shift prying eyes away for the time.
It was a simple thing to wrap all the abducted Dominators with the Storm Clasp Spell that he expanded to hold all 653 Dominators he had taken including the six Ancestors.