For all practicality, is there like a repository of the estimated MND values of exp mobs/HNM?
I mean looking at that graph, it seem that Slow II with 1 or 3 merits doesn't have that huge of a difference unless you can manage the 50+ MND difference, which seem unlikely to happen on most mob where those extra percentage from the merit would actually matters.
NIN's debuff has static potency AFAIKA NIN w/ a Terra/Earth Staff just increases his accuracy, it doesn't have an effect on the potency of the spell.
XI Wiki

