Everyone knows that words have power, but in the DC Comics universe three single words spoken by Zatanna to Batman caused the dissolution of the Justice League, a major crisis, and came close to destroying all of reality. Identity Crisis, a famously controversial comics event from 2004, saw a major retcon take place in DC continuity that led to Batman descending into paranoid distrust, eventually leading to the event Infinite Crisis that very nearly saw the destruction of Earth and the entire Multiverse.
Zatanna is an incredibly powerful magician in the DC Universe, and has been an on-again off-again member of the Justice League and the Justice League Dark, using her backwards spoken incantations to create mystical spells that can warp reality. She is a member of the magical species Homo magi and is often considered one of the most powerful magicians in the DC Universe, but even her immense power was not enough to overcome Batman's pure will and drive. Identity Crisis at first focuses on the brutal murder of Sue Dibny, the wife of the Elongated Man, but quickly devolves into a series of revealed secrets that break the bonds and trust between the Justice League.
Related: Justice League Confirm They Can't Survive Without Martian Manhunter
The big reveal of Identity Crisis — written by Brad Meltzer with art by Rags Morales and Michael Bair — is that years ago the Justice League, which at the time included Atom, Black Canary, Hawkman, Green Lantern, and the Flash, unanimously decided to allow Zatanna to mindwipe Doctor Light after he sexually assaulted Sue Dibny. Apparently Batman walked in on this happening and was outraged, furiously attempting to stop them, which then led to the Justice League deciding that Zatanna had
Read more on screenrant.com