Talk:Merging/@comment-182.55.96.78-20140417235927/@comment-556400-20140418001957

Since Ame no Uzume is a rare, its max level is 50, so if you start at LV48/49, you risk hitting 50 and having extras that you can't fuse.

If you just want to get "as many bonus points with what I have" then yeah, feed them at LV47 or something. But, if you want to maximize her bonus points and are willing to wait until you can gather more copies, start at 42 or so.