Since I can't write a support ticket about this issue I guess i have to make it public.

--[REMOVED]--

Result: Character becomes Invulerable. No health loss at all, some effects like frozen don't work anymore.

Works in Softcore and in Hardcore. Needs a couple of tries to get it working, but once you have the timing it can easily be reproduced. This is pretty much gamebreaking, I hope to see a hotfix soon.
Edited by Vaeflare on 7/22/2012 10:51 PM PDT