Easy Venomhide Raptor Mount at 70+

I was leveling in Icemist Village and just happened to have Toxic Tolerance uncompleted in my quest log.I found that you can get one or two splashes per mob at level 74 by attacking Anub'ar Slayers. I don't know why it happens,but you can get the quest done ridiculously fast due to the large number or Slayers that spawn in the area.