what does ring of ending do?
For sure we know it have nice red light and that it rotates around.
Also Ring is telling us "Pain is no word for what you feel anymore. If you do not put the ring off it MAY kill you. Chances are 50/50."
We need very rare item from Sight of Surrender , String of Mending and Broken ring of Ending from Yielothax.
I did ring in first try, but I have friend which already used 3 Strings and died triple times. :D