Quote Originally Posted by Quor View Post
If by "specific condition" you mean "all the time," then yes.

Bloodspiller has a higher potency-per-GCD than any other skill DRK has. It will always be a potency gain. Always. TBN provides what amounts to a "free" BS it pops. TBN costs the same MP as DA. DA on average grants 140 more potency per GCD skill that uses it, while TBN grants a 400 potency GCD skill. 400 > 140. As long as the 50 blood gained from TBN isn't wasted, then it's pure DPS gain over DA.

Bloodspiller is always a potency gain. TBN is always a potency gain, as long as the TBN is popped at least 1 out of ever 2 times it is used. Always.
Nope, nope, nope and nope.
Soul Eater combos is 700 potency, so your average GCD is 233 potency.
DA is a flat 140 potency increase so a DA buffed GCD is 373 potency which in isolation is lower than the 400 potency from TBN+DS for the same MP cost.
BS is a 167 potency over your average GCD while DA is 140 potency.


And this is where the opportunity cost of TBN+BS comes into play...
In order to get that 400 potency now, you have to give up on restored MP from Syphon Strike and Blood gauge from Soul Eater. It's not an issue if you only do it a few times during a fight but it will become relevant in the long run.
Out of grit, it is 1200MP and 10 gauge every for every 3 use of TBN+BS, or 400MP and 3.3 blood gauge per GCD on average.
And because there is a direct conversion of MP and blood gauge into potency (2400MP = 140 potency, 50 gauge = 167), you give up (140/2/3) + (167/5) = 56 potency worth of resource could have been spent later throughout the fight.

In short, TBN+BS is more potency right now but less potency in the long run later in the fight for personal DPS. Of course there is the valid argument that you may allow a healer to fit more DPS ability but really TBN on other people is just a regen tick.

I know this is not going to change your opinion and that's fine.
It's all theorycrafting and its validity in a fight will depend on the encounter.
What's important is the method how you evaluate an ability and realizing that there is always an opportunity cost to every move which may/may not be outweigh by the benefit.