The scariest detail in Endgame is that Thanos fought the final battle with zero Infinity Stones. This is 2014 Thanos, pulled forward in time before he collected a single one. Marvel spent 22 movies building up the Infinity Gauntlet as the ultimate weapon. Then the writers took it away and let him fight the three strongest Avengers bare-handed. Watch the choreography with that in mind. Thor and Iron Man run their supercharged combo from the 2012 Battle of New York. Thanos parries it by…