5.0 Dark knight request: Delirium rework

[Ekimmak]

While I feel Delirium like a low-cost IR, I'm more upset about the DRK is the only tank to have only one combo. I miss the first one Delirium so much, the animation, the way we don't only doing 1-2-3 ALL the fight.

I don't think DRK will ever get Delirium back as an attack, because the animation for that went to Interject.
But it could definitely use another combo attack. Even if that's technically homogenisation because then all tanks would have 2 combos to alternate, at least it wouldn't feel so mindless. (Power Slash would be nice to have back)