"The binding magics I would employ are designed to be able to be used in the hallways of Pandaemonium. Though they do require some amount of space, anywhere the creatures might easily be found will suffice, provided I am able to see the creature I intend to bind."

And that is as much for the sake of knowing the precise location of his target as it is a desire to not have the chains strike merely a glancing blow.

"A wider open space will provide better visibility, to the extent currently possible, but it is not necessary."