"They must? Or maybe they all do it together, they seem to have some amount of powers they are drawing on. But that's merely speculation. We'd have to ask them, or someone who knows more about them." Like Robin or Dr. Solis. There's so many things still to figure out and he's not entirely sure that's the right place to start.

But seeing if killed things stay dead is at least easier than attempting to figure out how to destroy creatures that can consume light and entire planets.