I was doing some quests in Blades Edge and I used Hand of Protection to get to a place quicker down the hill then I mount up. When I got on my mount I got too close to the edge I fell and I thought I was gonna die since my bubble and HoP were on CD but to my surprise I didn't die... I thought it was lag and it was matter of seconds to see my char die but it didn't, now I can go anywhere and just drop down and not take any dmg. I was gonna take Screenshots but I don't see how I can show that I'm not taking any dmg.
Edit: You can pretty much dps a down someone flying in the air and not dying from falling and I got my Achievement (Going Down?) =) Let me know if it worked for you guys too.
Ok, check the video here:
[ame="http://www.vimeo.com/1992687"]Dropping in Blades Edge and not taking dmg bug on Vimeo[/ame]