Dispell everything you want until you see a message that tells you NOT TO. Works for all BfA Dungeons and Raids.
Current Debuffs:
- Unstable Hex (Atal Dazar)
- Dread Mark (Waycrest Manor)
- Runic Mark (Waycrest Manor)
- Unstable Runic Mark (Waycrest Manor)
- Violent Pathogen (Waycrest Manor)
- Endemic Virus (Uldir)
And yes, I manually checked every mob in every dungeon :D