Talk:FGO 2016 Summer Event/@comment-29767082-20160828235921/@comment-10691202-20160829041934

Once you bought them, it will be forever in your inventory until you use them when u lvl her up (anytime in future, dont have to be right now). You dont have to use them immediately.

But if you dont buy them now, it is super unlikely u can ever get them again in future. So yah, buy them first => then buy all the other gaebolgs.

Both are important but at least even if you cant get all the gaebolgs, you can level her to lvl 80 once you start levelling her if you have all the branches