Here are some of the Player builds I just came up with.
1. Domination Keystoner: Tryptophan Signet is quite a nice snare, especially combined with Keystone Signet as it will also do damage and instantly recharge if Keystone is cast.
2. Condition Keystoner: This build will probably work quite well with condition based teams, however it does cause Diseased condition, which may spread to your party so be warned:p
3. PI Domination: Pretty much full shutdown with big damage. Waste not want not is for some energy management, Battle Standard will increase your teams DPS by quite a lot too
4. Esurge: Just a pretty basic Esurge build (if you are running multiple Esurges in a team to the point where the energy of mobs is too low, consider bringing Aneurysm)
5. Esurge: Another pretty basic Esurge build (if you are running multiple Esurges in a team to the point where the energy of mobs is too low, consider bringing Aneurysm)
6. Echo Domination: You can pretty much Echo any skill you got. Spiritual Pain will probably be the new Flare, but only with much higher and armor ignoring damage lol.
7. Echo MoP: This build might be a fun one to play if you run a pretty physically stacked team and a good snare or two^^ It is highly reliant on heroes to do damage so it might not be your playstyle. Just thought it was a fun concept to just throw in the ring :p
Regarding the build you sent, I am personally not a fan of Mind Wrack. If your target reaches 0 Energy and hasn't died, it usually means your damage is too low (atleast in my mind lol). I would also remove Chaos Storm and add Arcane Echo and Aneurysm. The beauty of Aneurysm is that it gives me one everytime I have to think on how to write that word... Just kidding, it's nice in the way that it also sucks the energy of all surrounding enemies, but this might decrease the damage you do with Esurge after that target dies. So in that sense you need to get skilled enough with it that you can time it. Even if their energy is sucked away, you can give it back again with Aneurysm, so in that sense it also fuels damage. Like I said, it's a bit more of a "you need to get good at it" kinda skill.
Let me know what you think!:)