Ammar "ATF" Al-Assaf had one of the luckiest reads of Dota 7.32b patch. Several hours back he had a matchup on his main hero Mars, which helped him to take down the enemy Invoker in the flashiest way possible. 

As fans suggest, he might have been lucky getting to know where the opponent hides, but he could also read the game solely on the debuff. In reality, there is yet another skill that gives more info on the enemy, and it is the animation of Mars' Bulwark, which shows when one is hit by the skill. Wether it was a combination of luck and skill, ATF made fans wow in a couple of minutes for his high IQ play.