Board Thread:Speculation House/@comment-27394360-20151214040010/@comment-178.239.99.68-20151214105050

Current theory of mine is Emerald can make one person see things where as Neo puts up a almost glass like construct that all can see.

Emerald gets in your head and makes you see things. Neo makes things.

Thus Neo can change her appearance while Emerald can have Yang react to an attack that did not happen in front of an arena of people and cameras that only saw her attack Mercury.