Lava Statue boss in IT

There's this Lava Dragon Statue thing I didn't even know existed, and I just can't kill it????

I tried using a monopyro team with Mavuika, Lyney, Bennett and HuTao despite it being a team with three MDPS units. It took the shield down quickly but my Mavuika does no dmg without reactions.

I also tried throwing Nahida in there because burning helps with the shield, but that didn't work either.. not even when I put Yelan in the team. Plus, having a team with no healer is a bad idea there.

It just feels like the shield is CONSTANT. I've looked some teams up for the boss but none of them really worked.. I dont have Arle or Emilie, just a Lauma I stole from a friend, and idk if she'll be useful

Maybe my Mavuika is just bad.. would a Kinich team work better? I used him for the previous battles 💔