Should Dark Knight get a Rework?

[Soge01]

If only the blood gauge could be used to shorten the recast timer for Living Shadow after use. I also wish instead of Dark Knight needing TBN to break to get an extra attack out, the ability instead just reflected all the damage it accumulated from enemy damage back at all who attacked it once either after the timer for TBN runs out or it actually breaks. And building upon that, what if Dark Knight could hold onto that accumulated damage that the shield received to either attack a single or group of enemies with it, or heal itself or one of its allies with that damage energy? Latter part reminds me of the way Gunbreaker and Paladin can heal others though.

Also, Bloodspiller and Quitus just being made into one big AoE attack that uses a large chunk of the blood gauge to deal as much damage as possible to a group of enemies with Delirium just turning this new attack into a three his AoE combo. Maybe renamed Crimson Blood Dance for the Delirium activation upgrade and the regular version just keeping the name Bloodspiller.