No Fall Damage (Rogues)

With the new 41 point talent in subtlety (Shadowstep), you can use this ability on an opponent before you hit the ground, and you will not take damage. Kind of like blink/charge/intercept. You can also Shadowstep up steep cliffs and many vertical slopes.

First of all: Shadowstep is currently not available on public Servers! Shadowstep is just includet on TBC Beta Servers!
Second: For this you need someone/some mob to do shadowstep and there are not many spots where its so helpfully.... anyways maybe helpfully very rarely!