[#][F] Stephen Lea Sheppard - 6/4/2018
My joke answer is that it if you detonate it in a Shadowland, it just overwrites it into a wyld zone, because fine, whatever Shadowlands are part of Creation, but if you try to bring it into a place where wyld zones can't be, you can't do that-- like, trying to pull it across the border of a shadowland at night so it enters the Underworld is like trying to pull it through an invisible wall that you can pass through but it can't. Possibly it makes a comical clang noise every time it hits the border. Same if you try to pull it through a Yu-Shan gate or across the border from Creation to the Endless Desert.

My real answer is the same for the Shadowland bit and I dunno for the rest.