Originally Posted by Blizzard EntertainmentI'm almost positive that the way it works is the glyph leaves a 10% snare on Mind Flay today on live (the glyph didn't change in 3.2). The reason is because we thought it might cause a lot of bugs related to whether a target was officially snared or not. A 10% snare isn't particularly useful but it is noticeable.
What we're talking about is changing the glyph to not affect the default snare at all. The glyph would just boost range.