Low developer effort rework for the DRK Job

[Shurrikhan]

- Oblation duration decreased from 10 sec to 3 and damage reduction increased increased from 10 to 25%. (save that greedy dps from himself with a quick intervention, then let the healers deal with him. again, you need to time it right or else it's a wasted cd)

Given varying target latency, this should probably be extended to the tank-short-miti standard of 4s. (Iirc, we see 3s literally only on Third Eye, a personal that already feels pretty rough in any sort of lag.) Additionally, saving low-HP targets (the wounded and/or squishies) greatly favors barriers (since they'd take little further damage thereafter) over percentile mitigation. By the time a % actually saves a squishy it's likely to be OP on a tank. (Yes, this is largely just due to tank's passive eHP being too damn high.)

TBN cd is increased to 25 sec but mana cost is removed. (still requires a skill check to use at full potential, because it needs to break for proccing dark arts. cd increased to compensate not requiring MP)

I really don't want to see the job dumbed down and homogenized even further.

Salted Earth triggers the 500 potency attack from the new trait automatically and instantly when you cast it, leaving the aoe dot behind. (potency can be lowered from 500 to 350 to balance the fact that its less effort to use)

Such means we can't use Salted nearer to its cooldown if adds are to spawn within its duration. Given that adds often won't last the full duration of Salted Earth, being able to put it down nearer the CD and then blast later has felt to me like an option worthy of its oGCD taken.

Enhanced Unmend is removed and replaced with Ehanced Soulstealer - when u use the Soulstealer as part of the combo (but only when part of the combo), it reduces cooldown of Abyssal Drain/Carve and Spit by 5/7/10 (?) seconds. (No idea how many seconds to remove from the cooldown would be balanced. There are smarter ppl than me who could figure this out)

This just feels like needless alignment hell for a really wonky increase to potency-per-minute and seems no less like bloat than did Enhanced Unmend.

...It doesn't really even make Skill Speed any more viable (not that you'd want that except at very low ping, given how crowded the burst windows are), since the power of each individual cast isn't, itself, affected by Skill Speed (but is by Det, Crit, and DHit).