When it comes to heroic deaths in the Marvel Cinematic Universe, there have been quite a few. It makes sense as the MCU existed since 2008's Iron Man. These moments add extra layers of gravitas while upping the emotional ante by showing no character is safe from death. Sacrifices such as Tony Stark dying after his Snap in Avengers: Endgame, as well as Black Widow giving up her life for the Soul Stone stand out.
Source：https://www.cbr.com/mcu-multiverse-saga-heartbreaking-sacrifices/
