Originally Posted by
Korpg
They have already answered.
DRK: To get something, they must give something for it. That is the whole theme of the job.
Souleater: Increased damage, but giving up HP.
Last Resort: Increased Attack, but giving up Defense (yeah, we know, Berserk for DRKs). Now with Haste.
Diabolic Eye: Increases Accuracy, but gives up max HP.
By the sounds of it, these two new abilities will be along the same route.
All SE is doing is going by their theme. By all means, you don't have to use it. And don't forget, you guys still have access to the only thing that deals out instant death to enemies (Twilight Scythe).