Not gonna lie, it still baffles me that DRK has the lowest regen for mana wise, but PLD has SO many ways to regen mana and they can hit cap pretty quick like it's nothing.

Blood Weapon is only just a spoonful for one bite of "Flood of Shadow/Edge/TBN"

Syphon Strike gives you 600 MP, but PLD Riot Blade gives you 1,000 MP

And I hate that Delirium when using BloodSpiller, you get 200MP and Quietus gives you 500 MP

And now Delirium is only 3 stacks, we basically getting 600 MP back in return instead of 1,000 MP When using BloodSpiller though