Talk:SE.RA.PH/@comment-144.173.23.67-20170429122054/@comment-28242634-20170429125642

The event Servants are used for increasing the sakura chips. If you think you can't level them up till they acquire their third skill, just put them at backup.

Try to level your Cu and Emiya. They have skill sets that are very useful...though Emiya requires strengthening quest first.