Board Thread:Manga Discussion/@comment-34204637-20190608132202/@comment-36968375-20191009185308

That's a neat idea, but Araki has stated that there were only six arrows in total, five being unfinished, one being completely finished. This is also confirmed in the manga. Dio had used the requiem arrow on himself, and in his quest to 'attain Heaven', later gave it to Pucci to hold on to until they met again. We can most likely assume that Pucci at some point gave it back to Dio before the start of part 3. Hope this helps.