Instructions
Dodge his horn attack. Barroth charges like a bull with his head down. This attack can sometimes kill you outright.
Avoid the mud Barroth flings when he shakes himself. The mud sticks to you and slows you down, making you easy prey. If you do get covered in mud, keep away from Barroth until it falls off. You can also equip armor that works well with mud, such as Rhenoplos Armor.
Attack his weak spots. Barroth's hind legs and underbelly are the best place to attack. He is especially vulnerable when he rolls around in the mud, exposing his underbelly. For weapons, use a lance or sword and shield combo.
Use the Cha-Cha potion to create a distraction. Attack Barroth while he goes after the Cha-Cha.