10 Comics You Must Read Before Avengers: Endgame
1. Avengers: Disassembled

The Avengers have had so many different lineups, leaders, and reasons for coming together over the years which has led readers to believe this trend would continue as long as the stories were written.
That theory was abruptly crushed by Avengers: Disassembled. It contains what is described in the story as the worst day in the team's history, which is similar to what happened to the Avengers at the end of Infinity War.
Disassembled vividly illustrated what would happen if Marvel's finest were to split up. It was arguably the most devastating breakup since The Beatles called it quits, as the results of the story went onto change everything fans knew about the Avengers.
It is hard to believe that Endgame will not have the same effect for moviegoers, with the film set to change everything they know about the MCU forever.
Some of their favorites will call it quits or perish, leaving the door open for a brand new set of supers to fill out the team in Phase 4. A seismic shakeup like the one readers experienced in Disassembled, then, is the perfect way for individuals prepping for the long-lasting impact the fourth Avengers film will inevitably have.