Cloak-Vanish

From WoWWiki

This article contains strategies that are for rogues.

The spell, Cloak of Shadows removes all DoT effects (including poisons and whatnot, refer to the official Cloak of Shadows page for details), with the exception of bleed effects. CloS also increases your chance to resist all spells by 90% for 5 sec. It does not remove effects that prevent you from using Cloak of Shadows.

Something you should note is that is also removes tings like Faerie Fire and Hunter's Mark. Note though, if you are only trying to remove Hunters Mark, simply use vanish, as vanish alone removes Hunters mark.