What should I do with the ill-fated task (that is, how to get a fortune-telling sign)? Where can I buy jade?

Go to a fortune teller after level 50, and I will give you a sign every time. I can't wait to buy it with others. But there is no need to draw all the signs, just give you three sacred commands.

Jade is bought from the treasure chest of Treasure Pavilion, which is similar to drawing a red envelope. I tried three of the four words to get Jed.