When target casts PvP Trinket plays sound.
* Insignia of the Alliance
* Insignia of the Horde
* All class variations
Recommended to install GladiatorlosSA2 for retail, Open its sound file location
C:\Program Files (x86)\World of Warcraft\_retail_\Interface\AddOns\GladiatorlosSA2\Voice_enUS
Copy the Trinket.ogg sound file (or all 508 sounds for other usages)
Open the Classic WoW folder
C:\Program Files (x86)\World of Warcraft\_classic_
Make a CustomSound folder in _classic_
C:\Program Files (x86)\World of Warcraft\_classic_\CustomSound
Paste sound files inside the folder
Open this weakaura, go to Actions tab
Checkbox Play Sound, Select Custom in dropdown
CustomSound\Trinket.ogg
[Note if you copied files while game was active, you must close and re-open for WoW to read them]