Originally Posted by
Claire_Pendragon
Something I noticed last night, playing DRK again for the 1st time in forever, I noticed I tend to hit DA right before the 2nd hit of my combo, to avoid clipping issues, so this may have been done intentionally as a means to remove DAs if you prep it early, rather than right as you do the attack.
PLUS early in the fight might be near full MP, so hitting it BEFORE syphon would allow me to have spent less over all for a DA. So I'd wager its a small addition to actually punish you from trying to make it easier on yourself.