The Nian Beast dungeon has a chance of appearing after clearing the exploration dungeon. You can challenge it once every 12 hours. During the Spring Festival, it only takes 4 hours. It consumes 12 stamina each time and you can get roughly the same money as the Stone Talisman dungeon.
Exhaustion: When the Nian Beast's health is lower than 40%, it will temporarily enter the vanity state. The vanity state lasts for two rounds. The higher the damage it receives during the vanity state, the more money it will receive.
Earthquake: A group skill that consumes 2 will-o'-the-wisps.
The Nian beast often produces experience, materials and money.
To sum up, Nian Beast is just another copy of Stone Talisman, but it has very little experience and produces Bodhidharma materials. They are all fragments. Basically, if you play 6 times a day during the Spring Festival, you can change to Bai Damo. The rewards are indeed not generous.
Lineup:
4 output + 1 lighter, nothing to say, Guhuo Bird and Demon Sword are the best, and Needle Girl.