The Definitive Dark Knight Guide

[AngusHH]

Its viable MT only with Darkside up?? For AoE and Single MT i should always use Darkside and Grit???

[Xenosan]

Does anyone know how our mana bar scales? (if it scales at all)

If I'm understanding your question correctly:

As DRK is leveled the MP cost of spells scales up along with our MP/PIE, as does the MP regeneration of our CDs like Blood Weapon & Blood Price, and WS Syphon.

Granted I'm 60 and can't go back to check without level syncing something, but from testing before, Dark Arts cost about 25% of our total MP.

(In fact, regardless of your level; I bet you your Syphon Strike's MP return - multiplied by 2 - is equal to the MP cost of Dark Arts)

The scaling is uniform across all aspects, MP cost, native regen, Darkside degen, Syphon gains, CD returns, etc.

So the only difference DRK should be feeling is: as you level up, there are more ways to spend your MP.

Its viable MT only with Darkside up?? For AoE and Single MT i should always use Darkside and Grit???

You want to maintain 100% uptime with Darkside whilst in combat, but can't forget the priority of Hate > DPS.

If you run the risk of exhausting all your MP with no way to regain it, it is worth dropping. Especially so if it's near the end of the encounter and there is another engagement shortly to follow -- don't want to start the next fight on empty (all DRK pulling / aoe enmity WSs have an MP cost [exception of Plunge, but that doesn't have an enmity modifier), or create down-time by sitting idly for some MP to regen.

Should also get in the habit of dropping Darkside after each fight. Even in dungeons. It doesn't matter in dungeons so much because between pulls is considered Out of Combat, so Darkside degen won't kill your MP. But things like Ex primals and Coil, when the boss leaves the board for those divebombs, Heavensfall, etc -- your status remains In Combat; you will lose all your MP during these phases if you forget to drop Darkside. So create the habit of dropping it now.