Even with his legs bound, he can still adjust his footing slightly and shift his feet beneath him, which allows him to 'ground' himself and tap into the ley lines that are running beneath the Lair and the mountain - take hold of the energy pulsing beneath them, allow it to center him a bit.

"Have many...many other ways to achieve that."

His self-control is still threatening to falter, especially as she keeps up with the dancing in front of him - her rhythm has increased now with the weight of the dress 'lifted' - and in turn, so has his own heartrate and breathing increased.