Board Thread:Versus Battles/@comment-31966485-20190122232838/@comment-31966485-20190123003212

only partly true, I'm still unsure Shirou can fully copy a Zanpakutō because it's functionally an RM in the form of a sword (similar to La Pucelle: The Crimson Saint) and at the moment Shirou does not have full access to UBW just yet.