Dunno what the previous posters are talking about but this is an awesome AA.
This is a self targeted AA than teleports you forward 160 instantly.
For indoor zones with KoS see-invisers, this is awesome for navigation. For example, in Chardok(EOK) your travel times are reduced because you can jump around wardogs and guardians without having to fight.
Invisibility drops but it's an instant spell, so you can jump from right on top of a KoS mob but make sure your landing sight is clear.
Is it mage only or do other classes have a similar tool?