New Hidden Achievement in Version 1.4 Part.2 | 5 Primogems - Genshin Impact

Video Guide:

I think we had this one already in Version 1.3. But we couldn't finish it. Now we can finish this achievement in Version 1.4.
Steps: 
1. Fight with the boss.
2. Patient till the boss does the mechanics.
3. Use Pyro character to destroy one pillar.
4. Congratulations.
5. Check the Achievement and get your primogems!
More are exploring. Good luck! 🤗