Did some math because I was bored. Figured I’d share the results in case anyone cared. Specifically concerns Blackened Blood.
So I figured out why the support settings are slightly weaker than the damage settings even though things were supposed to be balanced out: Blackened Blood got stealth nerfed. As far as I can tell, it isn’t mentioned anywhere in the patch notes. But the support settings got their boost nerfed from 15% to 10%.
Except that the change to the critical damage (down) setting got changed to additional.
To quickly summarize, at capped 7DS, the 15% multipliers to the damage settings (left and right) are equivalent to 9.2% increases. Meanwhile, the 10% additional to the critical damage (down) is a flat out 10%. So it’s actually slightly BETTER, but probably with the caveat of whether or not you have mdef shred in your party, since the base 15% of that will get weakened if you do.
For some silly reason, they nerfed the ele boost down to 10%, but left it multiplicative, so it’s a 5.9% increase.
In summary, when using Blackened Blood, never ever use the ele boost. It sucks hard. Even with Soul Devourer, where you’re drowning in elemental elenore, it still ends up slightly behind. The rest is pretty much as it always was before. The only reason you would ever bother using the ele boost is if you’re there just to support and there’s already plenty of mdef shred, so that setting simply wouldn’t do anything.
This also means that the crit damage setting for BB is always worth 5 levels, and therefore is worthwhile even at lower 7DS levels.