In the wake of a crushing defeat at Thanos' Infinity Stone-clad hands,the heroes of the Marvel Cinematic Universe will face their greatest challenge yet in Avengers: Endgame. But, who is the greatest hero in the MCU? Over the next couple weeks, or SYFY WIRE will be debating who deserves the title of The Most essential Avenger. Our next contender is Black Widow,the Avengers’ resident master assassin.
Source: blastr.com