User blog comment:LivesByProxy/Proposed Vision Alterations/@comment-24385282-20160120185301/@comment-26815373-20160120190330

This was written back before was a named effected (you may notice I just refer to it as 'the graves / noct blind'). The idea was that, rather than just reducing the target's vision range and removing their shared champion vision, their would be a visual effect overlay (similar to  and / or  effect) except it would be a dark blue / icy white overlay. Functionally, it doesn't really do much since you are stunned, but it would look cool, and upon leaving the you would have to reorient yourself since you had no sight of the team-fight / enemies / allies.