Think there is great similarity in how it describes some fighters style or lack there of and any given styles clash where a guy just couldn't resolve another. A 'he had his number' type thing. When I think nightmare style it might be everything from Hamed to a second half Hopkins to Zapata. Fight by fight maybe a Malinga vs Benn? Think Norwood was a nightmare style for Marquez even though still not convinced he beat him. He was also a dirty fighting mofo while we're at it . Griffin vs Toney was like looking in a mirror in spots..close both!..or Holmes clowning a ripe rage in Mercer. Martinez blowing up Chavez jr. Not sure we didn't all see it coming but man it's fun to watch. Juan Coggi...now that is a stylistic nightmare .