Barroth owns a thick and solid crust
From the very first meeting with Barroth, you can confirm that this is definitely not a monster that is easily defeated. To overcome Barroth, you will face a scaly, naturally hardy mud layer. Not to mention, some mud traps that Barroth scattered on the ground also make you relatively easily trapped. Bring some water elemental weapons, and concentrate on attacking Barroth's exposed parts - where he is most vulnerable before he dives into mud and healing is the basic principle.