The Cosmic Horror

I have a character that has an eldritch and incomprehensible nature, like a Lovecraftian Great Old One sort of creature, and I want his powerset to reflect that. I currently have a Darkness Build for him, which is listed below, but I'm split between that and a TK and/or TP build. Any ideas?

Darkness DPS - Freeform (Ranged Damage)
v3.44:36

Super Stats
Level 6: Ego (Primary)
Level 10: Recovery (Secondary)
Level 15: Constitution (Secondary)

Talents
Level 1: The Scourge (Con: 10, Ego: 10, Rec: 10, End: 8)
Level 6: Worldly (Ego: 5, Rec: 5)
Level 9: Amazing Stamina (Rec: 5, End: 5)
Level 12: Quick Recovery (Con: 5, Rec: 5)
Level 15: Ascetic (Con: 5, Ego: 5)
Level 18: Daredevil (Ego: 5, End: 5)
Level 21: Boundless Reserves (Con: 5, End: 5)

Powers
Level 1: Shadow Bolt
Level 1: Shadow Blast (Rank 2, Devoid)
Level 6: Shadow Form (Rank 2, Rank 3)
Level 8: Spirit Reverberation
Level 11: Concentration
Level 14: Shadow Embrace (Rank 2, Draining Shadows)
Level 17: Ebon Ruin (Rank 2, Nyctophobia)
Level 20: Dimensional Collapse (Glimpse of the Abyss, Lingering Darkness)
Level 23: Ebon Void (Rank 2)
Level 26: Resurgence (Rank 2)
Level 29: Madness Aura (Rank 2, Chaos! Chaos!)
Level 32: Ego Surge (Rank 2)
Level 35: Endbringer's Grasp (Rank 2, Rank 3)
Level 38: Rebirth
Adv. Points: 34/36

Travel Powers
Level 6:
Level 35:

Specializations
Ego: Force of Will (2/2)
Ego: Insight (3/3)
Ego: Follow Through (3/3)
Ego: Sixth Sense (2/3)
Vindicator: Aggressive Stance (2/2)
Vindicator: Merciless (3/3)
Vindicator: Focused Strikes (3/3)
Vindicator: Mass Destruction (2/3)
Guardian: Fortified Gear (3/3)
Guardian: Ruthless (2/2)
Guardian: Find the Mark (3/3)
Guardian: The Best Defense (2/3)
Mastery: Ego Mastery (1/1)

Devices