You can slightly move them if you push against them. If you don't want to do that, go a bit away, and they will teleport to your location. You can easily break their shields if you can group them and trigger a swirl reaction. There will be three abyss mages, each one from Hydro, Pyro, and Cryo. If Pyro abyss isn't a big problem here, but Hydro and Cryo ones are. Hydro abyss mage can lock you up in a Hydro bubble and quickly detain you. On top of that, if you are affected by Hydro and the Cryo abyss mage applies the Cryo element on you, then you will be frozen. So, you can either have a team with opposite elements or try to use the brute force method. Or, you can group them and trigger a swirl reaction with Anemo characters like Sucrose, Geo Traveler, Venti, Kazuha, or Sayu.