Comments here made me nervous figthting him. I gave it a try and 27 min later he was down. Only needed a handfull of potions. I used the high metal armor set and the Diablos Shaterer 1. No potions, mantles or decorations involved (mainly because I dont have them^^). Just run around him and go between his 2 legs, attack his belly till he gets exhausted, then break the horns and end it. Gonna go and farm him for his armor now.