Imagine Breaker comes from A Certain Magical Index, which began as a light novel series in 2004 and received an anime adaptation in 2008. It is the mysterious power in protagonist Touma Kamijou's right hand that negates supernatural abilities, and the anime gives that negation a distinct shattering sound cue. Fans ripped clean versions of the effect for edits and soundboards because it works without context as a clear audio symbol for cancellation. It remains popular in anime edits where an unstoppable power needs to fail instantly.
About this sound
The clean Imagine Breaker sound effect from A Certain Magical Index, the sharp shattering noise of Touma negating powers, used for anime edits and reveals.
This is the clean, old version of the Imagine Breaker activation sound from A Certain Magical Index, the ability in Touma Kamijou's right hand that cancels magic and esper powers on contact. It is a short, sharp shattering burst, like glass and energy cracking apart at once, with no dialogue or music over it. The sudden break makes any hit feel instantly nullified, as if a powerful attack has been erased mid motion. Viewers familiar with the series recognise the cue immediately, so a single play signals a complete reversal of power.