5.0 Dark knight request: Delirium rework

[RadicalPesto]

I feel that while delirium having a completely unoriginal design is part of what makes DRK feel like it lacks an identity right now, the biggest problem with the class remains that you spend 80 seconds between each Delirium mostly spamming your 123 combo with occasional Bloodspillers, creating a rotation that feels empty. The recent changes to Ninja's Shadow Fang and the existence of Sonic Break shows that SE isn't opposed to the existence of single button DoT skills anymore, so long as they follow the new design of being a single gcd with its own cooldown, so frankly, bringing back Scourge as a DoT skill with a 30 second cooldown would give at least one more thing to do in the lengthy periods of downtime that DRK's rotation suffers from.

Delirium being Bloodspiller spam can remain in my opinion, but I'd prefer if it was a 60 second cooldown that only lasts 6 seconds (like its PVP version) so you can only do 3 bloodspillers during it and it doesn't feel like such a focal point of the rotation and instead just acts as something to occasionally break up the Souleater spam and Scourge maintenance. I'd also change Blood Weapon to have a lower cooldown (40-45s) and work similarly to how Bunshin does on NIN now, so that instead of being a tight timed phase, it just gives you 5 stacks of Blood Weapon that are consumed when you land a weaponskill or spell and give you MP and Blood, which would also solve the fact that it's almost impossible to get all 5 blood weapon hits in when AoEing.

These changes would likely make Dark Knight more interesting to play and give it a gameplay pace that isn't completely identical to Warrior without requiring a complete overhaul of the entire class (which we're likely only getting in two years). Square Enix is probably not going to change the class mid-expansion to have the high skill cap it had in Heavensward since it seems their idea of "complex, fast tank" right now is Gunbreaker, but I still feel Dark Knight needs a few more changes to make it feel distinct. Warrior needs changes too, but I'm not super sure what I'd do with that class.