Talk:Ur-Dragon/@comment-86.157.131.146-20120831204857/@comment-74.46.255.243-20120902182734

Fight the online Ur Dragon but don't kill it. During Grace Period, just leave the Chamber and sleep about 10 times in a row. Then when you go back, the game will reward you items as a Contribution prize. You should easily get a Heaven's Key that way.