Board Thread:Questions and Answers/@comment-43863986-20190918133245/@comment-27971189-20190919150101

And as I already pointed out, at the end, its down to each player management.

I won't really consider it worst buff / CE effect because, again, for casual players maybe like that but for player used with buff management its down to whether the slot worth it.

For Servant with their skills or card performance already sufficient, like Da Vinci, Black Grail is easily great for her; why bother with Arts Up if the increment is minor while she have NP regen, also good deal to conserve Guts, and if her first skill suceeded, its near 100% NP damage up.

That's up to you to decide.

If you're talking to me 2 years ago, I might consider it bad due to average roster selection as seen in NA. However JP already reach point that newer Servants kinda expected to take advantages of buff management, so there is no point insisting its a worst buff to me.