Oh my bad then. Her abilities are truly formidable, I don't really know what can cause her not to be able to clutch anyone though.The first thing you said was that Zoro/Sanji were stronger than Robin. I'm assuming you meant physically, and asked does Robin need to be physically stronger for her df to work? I was basically implying physical strength doesn't matter in this case. She can just make more hands or target an area(like the head) where needing to overpower them doesn't matter.