It seems that there is a bug with Ordeal 2 stage 50. When I was doing it first time of the day, I was able to kill Drake and get Bear to 10 HP and time ran out, but I tried upgrading my heros a little and I try again and now I die almost with-in 1 min.
Not sure, if others have faces the same issue or not. Could you check the combat logs to see if there is a bug? I am not sure if I was supposed to even get close to completing that level for my BR.