got mine full gold. to fully breakthrough, I would say he is harder than naruto 6p, but much easier than madara ttj (((btw, madara gold mystery by fragment, yeah I gave up. its too hard))). I've spent a total of 407-415 protection vials. the skills are easy to breakthorugh into gold, except passive 2. need lot of protection vials just for passive 2, the vital skill of him. that's by my experience. good luck and have fun^^