Complete Rework to DRK because boredom

[Chrono_Rising]

weee...

Scourge - Delivers an attack with a potency of 100.
Combo Action: Hard Slash
Combo Potency: 220
Combo Bonus: Damage over time
Grit Combo Potency: 260
Grit Combo Bonus: Increased enmity (5x)
Potency: 40
Duration: 33s

Why not add scourage back as an oGCD which procs off TBN breaking or as an oGCD procing off of bloodspiller? Making this an enmity bonus move gives us antisynergy as OT, and I don't think we need less synergy with the other tanks.

Dark Passenger - Deals unaspected damage with a potency of 160 to all enemies in a straight line before you.
Can only be executed when succumbing to the Darkside.
Dark Arts Potency: 210
Dark Arts Effect: Blind
Duration: 15s
Dark Arts Bonus: Increases critical hit rate of Unmend, Unleash, and Abyssal Drain by 60% for 6 seconds.
Dark Arts fades upon execution.

This is cool but why not increase the dark knights personal crit rate by 60% on all moves so that it doesn't lose its value on single targets? I feel it nerfs itself since this would only buff our mana based aoe, after spending all of our mana on making this happen.

Salted Earth - Creates a patch of salted earth, dealing unaspected damage with a potency of 75 to any enemies who enter, and increasing healing received by healing magic for any party members who enter by 15%.
Duration: 21s
Recast: 50s
Additional Effect: Increases Blood Gauge by 1 per target per tick.

I think you increased the recast time to 50 seconds from 45, but this isn't marked as a change. What do you think about a dark effects doubling the potency, or shortening the cooldown?