Trust Fall
{ You don't need to breathe. Not any more. }
The cold water of the lake was up to Sivana's waist; he had removed his shoes, not wanting to bother to get a new pair, and his socks, but his pants were soaked through and already heavy. He trusted Mr. Mind, though. He only paused a moment to listen to his voice, to see if he had further instructions to share.
Not quite. { Your body doesn't need air. It needs so much less than you believe. }
Sivana took a breath, let it out. Relaxed. "I know the magic gives me an unimaginable strength." Black Adam should have been able to crush his skull, but he hadn't. "But you're saying it's more than that?"
{ Hahahahaha. Much more. } As Mr. Mind seemed to be in an explanatory mood more than anything, Sivana continued forward. { The way the magic aged you. Ate away at you. You think that it sustains you now, but it does more than that. The ravages of time can no longer affect your body—your cells. Your brain can no longer be starved of oxygen. Your heart, if it ceased to beat, it would not harm you... At least, with practice. }
"I see..." Practice would certainly be necessary, in many things. He still spoke aloud to Mr. Mind; it was difficult not to, not when he heard his telepathy as if that radio voice were actually speaking in his ears. Needing practice was why he was here now, chest-deep in a lake in the woods of Pennsylvania. "You're proposing that I'm now in a state of... thaumostasis."
{ Hahaha. Exactly. Exactly so. } Mr. Mind could regulate his heartbeat, the chemicals in his brain, to keep him from panicking. But he felt calm even outside of that. Best to avoid any purely physical, instinctive reactions, however. { You would have called me an extremophile, once. Magic allows for so many possibilities. }
Sivana smiled. "I was a physicist, actually. Biology wasn't my forte."
{ You've reached the drop. Don't take a breath. }
He trusted Mr. Mind. Implicitly.
He hesitated only a moment, imagining the bottom of the lake falling away just past his toes. Then he stepped forward, not taking a breath, and fell.