Sorry guys!, I was distracted by some Rl stuff that happened and forgot to check this thread. Just going to be the nit picky lore guy again. No one can survive sitting in between planes. Walkers barely survive travelling through the Blind Eternities and that's because it's kinda just like falling with no direction. Nicol Bolas can't even survive in the Blind Eternities. The only beings in existence that can are the Eldrazi.
It'd make more sense if this bad guy walker that you have here soren...were looking through a scrying glass on a personal plane. just...not between the planes.