Arena.Net has posted the latest Guild Wars game update with a host of skill changes included. In particular, Dervish skills have received a huge amount of attention. The dev team determined that the Dervish was hampered by long cast times and skill cooldown and have made adjustments to make the character more viable.
In this update, we're doing an extensive overhaul of the Dervish. We've taken a close look at this profession and determined that it has a lot of unique and interesting mechanics, ranging from avatar skills to enchantments that have end effects. However, these fun and original mechanics are hampered by cast times and long disables, making it hard to utilize this profession to its full potential. To address these problems and make the Dervish a truly great class, we've made major changes to nearly every skill he uses. This may seem overwhelming and confusing at first, but we feel that these changes will make the Dervish a much more enjoyable character to play, while emphasizing the types of skill interactions that defined him to begin with.
Read more here.