90% of the idea you make is cleary over powered, you can't be serious with something like this.

But look now, Drk need a little more Dps, a little moremitigation, a little more of everything that can make him as good as the other 2 tanks on party utility.

So I'm thinking about a little upgrade of every attack of Drk from 10 to 20 potency in the first time.

Make dark passenger cost less mana, but instead of blind effect, a reduced damage effect, so the synergy with blood price can be better. Also upgrade is base damage to 170.

Make sole survivor an debuff on target that cumulate a part of the damage done to the Drk and then explode on the boss (like a counter attack) after the timer is out, the damage can't exceed 50% of the DRK's max hp, if the target dies before the explosion restore 20% hp/mana. Increase CD to 150sec, duration 10 seconds.

Make a wide range effect with Dark art for Blackest night. Protect everyone with a 5% DRK's max hp shield (this will make approximately 2500 to 2700), if shield explode, restore 10 blood (max 80 blood) and 480 mp.

Make shadow wall give a 35% damage reduction with a 120sec CD. This will be more fair, cause War counter with vengeance, but Drk don't.

Make dark mind effective on physical damage on base line, Erase the DA effect.

Make Plunge give more aggro.

Make Undead an invincibility CD like Holm gang duration 6sec, when an attack should kill you, you gain 5 blood and the debuff undead, that let you gain 5 blood par hit you take for 10 seconds. CD 300 sec.

(I know the next suggestion will not be appreciated by the elitist community who don't even care of what a tank mean)

This suggestions is for the 3 tanks at once. Make the Dps posture of every tank classe, generate - 50% aggro. Dark side aggro debuff is not effective if grit is activated.

So like this, tank won't have any other choice than use the tank posture that Naoki Yoshida is looking for.

(I hear it, people who insult me for this suggestion)