Dark/Earth Dom Build Help

[Mechanism]

Hullo! Long time lurker, first time poster. Hoping someone with more knowledge than mine (which is none) can give me a hand.

I made a Dark/Earth dominator that I'm trying to make a build for. I a) have never played a dominator before b) Don't know squat about doing builds and c) barely know how to work mids.

I essentially hunted around, found other posted builds with either the same primary or secondary and tried to smash 'em together. Before I spend hundreds of millions of inf with no idea on if this is complete crap or not, I figured I'd see if someone out there might be able to  set me straight.

I don't need the build to be the most broken thing ever, typically I just find a build that will hold it's own so I can keep up in content with friends.
I like the main and primary set powers I've taken, as well as the patron set for aesthetic reasons mostly, but I'm not completely tied to anything I need to change to make the build functional

 

Dominator (Darkness Control - Earth Assault).mbd

[EnjoyTheJourney]

Some ideas consider ...

1. Consider adding in power up to your build. Drop a level 50 recharge IO into the open slot for power up at level 47+.
2. You can drop haunt to get power up, as haunt contributes little damage to your build.
3. You can get a set with +10% recharge into heart of darkness to (more than) compensate for losing 6.25% recharge by dropping haunt. 
4. Reduce slots in stone spears to 3, use thunderstrike or superior winter's bite in stone spears instead.
5. Put the apocalypse damage proc into dark grasp, replacing one of the lesser psionic damage damage proc IOs. 

5. Put some more accuracy into dark grasp to get to at least 95% to hit against +3 mobs. Take out the current D-synch to make room for something with accuracy.

6. Switch off the toggles on the right hand side of the tremor and fissure powers to avoid getting confused about how much global recharge your dom has.

7. Consider putting 4 pieces from the unbreakable guard set into tough or sharkskin, with the +7.5% life unique IO being one of those pieces. 
8. When doing "7" above, be sure to keep the +3% defense IOs from the steadfast protection and gladiator's armor sets in your build. 
9. Replace the soul allegiance: damage IO with the soul allegiance: build up proc IO. 

10. Put the preventive medicine: absorb proc IO into hibernate
11. Put the panacea: +hit points / endurance IO into health. Add a second slot to health and put in the miracle +recovery IO. 
12. Several earth assault powers only work when your dom is on the ground. So, instead of taking hover and fly, take combat jumping and super leap instead.
13. Put a luck of the gambler +7.5% global recharge IO into combat jumping. 
14. Put two extra slots into combat jumping.  In those slots put the reactive defenses 3% scaling resistance unique IO and the unbreakable guard +5% resistance unique IO.  
15. Put the Winter's Gift set unique +20% resistance to slow IO into super jump. 
16. Look at the current recharge time for seismic smash and heavy mallet. With the +recharge force feedback IOs switched off you'll realize that the usual recharge time for seismic smash is fairly close to 8 seconds, while heavy mallet is under 5 seconds. Balance the recharge on those two skills better and improve overall damage by flipping the hecatomb set into seismic smash and the procs into heavy mallet. Also, drop the damage/recharge IO from hecatomb and replace it with the hecatomb negative damage proc. 
17. Although not important right away, as you earn inf at level 50 consider boosting at least the level 50 recharge IOs and all of the IOs that reduce endurance expenditures. 

You have an interesting take on how to put together a single target damage chain. There's merit to your approach, which involves essentially dumping stone mallet because it's a terrible "damage per second of activation time" power no matter what you do and proccing up dark grasp to replace stone mallet. 

If you struggle with endurance, and it is possible with earth assault, consider adding in the force of will pool (replace the stealth pool), taking unleash potential and slotting it with a +7.5% recharge luck of the gambler IO and two level 50 recharge IOs. 

Best of luck with your dom, however you decide to move forward. 

Edited July 27 by EnjoyTheJourney