When Tony Stark snapped, he, ever the wise-cracker, replied to Thanos' "I am inevitable" line with his own mic-drop "And I am Iron Man". Now, Downey Jr has spoken about the line, saying he deliberated about more options. Robert Downey Jr played Iron Man for ten years.
At the end of Iron Man, MCU changed the superhero movie game forever with just one line from Tony — an admission that he is indeed Iron Man after much speculation.
The gauntlet lets you do practically anything you want and Tony used its power to kill only Thanos. He could have used it to cook a steak or teleport to Mars, the gauntlets powers with all 6 stones are limitless. Tony just though of what he wanted (to snap away all of Thanos's army) and he did it. Simple.
Iron Man,” he snapped and Thanos saw his own army start disintegrating. Thanos saw a weakened Stark and quickly ran over to the gauntlet, put it on, then snapped the entire universe away, killing every living being in existence.
When Tony Stark snapped, he, ever the wise-cracker, replied to Thanos' "I am inevitable" line with his own mic-drop "And I am Iron Man". Now, Downey Jr has spoken about the line, saying he deliberated about more options.
I Am Iron Man Snap! Clip - AVENGERS 4: ENDGAME (2019)
What did Iron Man see when he snapped?
After Tony snaps his fingers while wearing the Iron Gauntlet, he's transported to a mysterious place. As he tries to gather what's going on, he hears a voice call out to him. Tony turns around to see a grown-up version of Morgan, played by Langford. Tony quickly realizes the young woman is his daughter.
It all came down to a scrum for the Infinity Stones between Thanos and Iron Man. Although Thanos thought he had the upper hand, Iron Man secretly took the Infinity Stones to perform a snap of his own – one which wiped the Mad Titan and his army from Earth but also ended his own life.
The fact that Iron Man snapped his fingers in the comics to manipulate millions of people while the MCU version did so to save trillions proves how insulting Iron Man's latest actions were to his MCU sacrifice.
Ultimately, Tony's final last words are his pre-recorded funeral message, where he wryly acknowledges his untimely death: “Not that any death is ever timely.” It is a funeral message clearly recorded to be heard by others, too, but at the end of his message, he echoes his daughter's recent goodnight to him, encoding a ...
The important part of this insight, however, is that if Thanos always kept his word, then when he performed the Snap, he likely did indeed exempt Tony from it specifically since he had told Strange that he would spare Tony's life. That bit of honor proved to be his undoing.
Originally Answered: Why don't the Avengers just snap again, bringing Black Widow and Iron Man back? The Soul Stone cannot be reversed. This is explained in the movie. HULK even says he tried his best when he snapped.
Instead, the House Stark family motto is a warning, one that, no matter the circumstances, will always be relevant: "Winter Is Coming," which served as a reminder of their beginnings in the wake of the Long Night and a grim portent of things to come.
The event was referred to as "the Blip" in Spider-Man: Far From Home (2019), but Kevin Feige later clarified that "the Snap" referred to Thanos' finger snap in Avengers: Infinity War while "the Blip" referred to Bruce Banner's finger snap in Avengers: Endgame.
After a fight for the gauntlet, Stark attached the stones to his armor, before snapping his fingers, disintegrating Thanos and his army, and effectively saving the universe. The action took a huge toll on his body due to the gamma radiation and the power of the stones, zapping him of his remaining life force.
Hulk snapped half the universe back, and back to safety no less. Plus, he spent considerable effort wrestling with the Soul Stone to get Black Widow. By comparison, Iron Man just snapped away all of Thanos' army, a miniscule segment of the universe. Hulk survived his snap.
The final battle between Iron Man and Thanos in Avengers: Infinity War secretly proved just how much the Mad Titan feared Tony Stark's armored Avenger.
After saving the world, making a play to sacrifice himself, and defeating Thanos' army, he was not able to lift Mjolnir in Age of Ultron. This shows that being a hero and doing occasional good deeds does not make you worthy. Tony wasn't a bad guy per se, but certainly not his best self yet.
Had he been in a much better shape mentally during Avengers: Endgame, Thor could have been the perfect Avenger to do the reverse snap. He and the rest of his teammates knew that he was physically strong enough to use all six Infinity Stones at the same time.
In Avengers: Endgame, would Tony have survived if he had not taken so much time saying "And I am Iron Man" before snapping his finger? No. While the time he took wasn't helping, the actual snap would have killed him no matter what.
Once everyone returns to the present, Tony develops a nano gauntlet of his own to wield the Stones. After declaring that he should be the one to Snap due to the output of gamma radiation, Hulk performs the third Snap in the MCU, sacrificing his right arm in the process.
The Hulk saw an alternate reality when he snapped his fingers: In the first vision, the Hulk saw the Russo brothers logically following the battle arena theme from Ragnarock into Infinity War and Endgame.
