You take quest 4. Reign of the black king. You talk to the quest guy in town and run through Cathedral 2 and enter Cathedral 3. You will get the checkpoint and make a new game. Then you proceed as in the video, you go to Cathedral 2 and look for the chest on that exact location. If it isnt there make a new game, rinse and repeat.
it’s not that effective as the old one but still okay =) if you have enough gear just go cathedral level 4 and farm this.