Phantom Assassin's Coup de Grace
Professional player like "Miracle" , if he used Phantom Assassin since "Coup de Grace" have the proc chances of multiple critical sources stack. So, sources of critical strike proc at the same time, the higher multiplier has priority. He assure that you will remove in the minimap.
If I have an opportunity to fight his Phantom Assassin I suggest to pick a tanky heroes and build Blade Mail. Miracle's strategy will be avoid.