Dervish is a sub-class of rogue. From the time of the Sundering (and possibly before), Loar proved to be a dangerous place where monsters of all kinds could sling spells or had magical abilities to throw at adventurers. One group of rogues discovered a way to embue their weapons with the ability to channel their own life force through them, producing a deflecting effect on any spells hurled at them. Skilled dervishes can reflect spells back at the source. Because of the often mutliple enemies faced (such as in a hive of magic-wielding monsters), dervishes often dance about like monks. Some dervishes have even made a living with a spell caster friend by having them cast spells at them while they dance creating a vivid show.