Scare was created as an Art fairly late in the Nightmare wars.. By a Fatesender known as Bastian. He was also a Guardian Protector. Bastian had long studied the 'mares... and knew that each one came from the Chaos... However, Chaos can not exist in it's pure state in the Dream... For the 'mares have form obviously... and they can be damaged, as any Dreamer can. So.. he found that even though the 'mares are spawned from Chaos... They were not all Chaos. He then conducted studies to find out just how much Chaos was in them... and found that in certain 'mares.. namely the ones with Scare.. There was a small, close knit bundle of pure Chaos inside them.. Somehow they revealed this to Dreamers.. And even the most brave turned and ran at the sight. Bastian later developed an Art that forms a small tunnel outside our Walls.. Bringing forth an image of the Chaos out there... and showing it to a targeted Dreamer.. with much the same effects. Bastian was later accorded Master status for his work. And it's practically a standard Fatesender art... as many tricksters reveal Chaos daily... with the normal running about madly effect.