Have you ever had a Raid Farm that always spawns Vexes no matter what the video tutorial says? Well your issues are over. Introducing Vex Toggle: A datapack that allows you to turn off and on Vex spawning at your will.

Useage:

• To turn off Vex spawning type: /trigger vexoff
• To turn on Vex spawning type: /trigger vexon

How it works(For nerds like me):

1. Uses scoreboards to track weather /trigger vexoff or /trigger vexon was run.
2. Next it uses /execute commands to detect the scoreboard statuses
3. The execute commands then run /function commands to enable functions that control the on and off of the Vexes
4. This on and off works by having a scoreboard that is influcenced by the functions and, depending on what value it currently has, an execute command will detect it and run /kill @e[type=vex] every tick.
   If you are more curious, your can see the code here: https://github.com/FASTB1mc/Vex-Toggle

If the datapack does not say "Vex Toggle by FASTB1-Loaded" in chat when you load a world, just run /reload and the datapack should load correctly. IDK why this happens.