I see. Beating this on normal is already a good challenge. I used the indestructible core of Kerria-Pink Miko-Cardamine to deal with it but it seems the Guts reset each time it goes over 1 HP (or it has thousands of guts?). Very annoying with its healing skill.
Now I can't wait to see Raine comming here with a one girl kill 10k points of that monster in hard.