Thread:Hitsuji Mamoru/@comment-28209369-20170731190723/@comment-4802891-20170818073213

It could be worthwhile to grail the low stats ones for the HP buff, giving them some degree of survivability, but 3* onwards, I don't think it's really worth grailing or even using gold Fou cards on support Servants.

Unless it's for love or a particular playstyle, of course.