Quote Originally Posted by OtherGuy02 View Post
What kind of effect do people think the grails give per one used? As its a max 100 I'm assuming 1 = 1% increase or something like that?
Just thinking due to being the only one in my union I'm having to solo this so don't have tons of grails to throw about so is it even worth throwing away say 5-7 into 4 stats each day or would it be better to save them for nearer the end then just use them all in the last few days to super-power through late level experts or ultimates when they become too difficult to handle without increases.
To be truthful, I don't think 5~7 grails in 4 stats is gonna help you much.

According to the JP wiki, the buff values are
Atk↑ = +1% each, +100% at Lv100
Burst Dmg↑ = +1.5% each, +150% at Lv100.
HP↑ = +1% each, +100% at Lv100
Heal↑ = +1.5% each, +150% at Lv100
No listed values for double and triple attack rates nor affliction success/resist.

Had double and triple attack at 100 yesterday but didn't recall if it was 100% or not, didn't pay attention to that detail but it was pretty dang often. Though it's most likely better to get only one of the two, since they do not affect each other and actually clash with each, unless there's a priority system with the 2.