Quote 引用元：Daniel_Fury 投稿を閲覧
If you break TBN 15 times in the fight, you have generated enough bloodspiller Gcds to lose a blood spiller generated from 5 soul eater combos. At this point it is definitely a loss.

A naturally generated bloodspiller from soul eater is a much higher gain. Even if you assume TBN "breaks even" in dps, after 15 TBN you definitely have lost a good chunk of potency and it is definitely marked as a loss.
Yep. Chances are you don't need to go as high as 15 though, thats if you ended a fight at 0 blood which is a low chance. If you end a fight with say 30 blood and use TBN 6 times you've canceled 2 souleaters and lost a natural bloodspiller. Same scenario. If you ended a fight at 40 blood and used TBN 3 times chances are you lost a natural bloodspiller as well.