Build Advice - Dark Melee / Energy Aura Stalker

[Calamity Cain]

Looking for tips from y'all about this build, because I always feel like I'm missing something. This is a concept build, so I'm only looking to min/max within those parameters. Note the teleport powers: they're placeholders for the new equivalents (Combat Teleport, Fold Space, etc.). I just want a fairly survivable build that packs as much punch as possible. Given that I hate running out of endurance and don't like relying on Ageless, I went for Cardiac Core, but if there's IO choices that can net me some better recovery I'll take it! Let me know any and all thoughts!

 

Villain Plan by Mids' Reborn : Hero Designer 2.6.1.25
https://github.com/Crytilis/mids-reborn-hero-designer

Click this DataLink to open the build!

Dibbuk: Level 50 Technology Stalker
Primary Power Set: Dark Melee
Secondary Power Set: Energy Aura
Power Pool: Teleportation
Power Pool: Flight
Power Pool: Fighting
Power Pool: Leaping
Ancillary Pool: Soul Mastery

Villain Profile:
Level 1: Smite -- SprAssMar-Acc/Dmg(A), SprAssMar-Dmg/Rchg(3), SprAssMar-Acc/Dmg/Rchg(3), SprAssMar-Dmg/EndRdx/Rchg(5), SprAssMar-Acc/Dmg/EndRdx/Rchg(5), SprAssMar-Rchg/Rchg Build Up(7)
Level 1: Hide -- Ksm-ToHit+(A), ShlWal-ResDam/Re TP(17)
Level 2: Kinetic Shield -- Rct-ResDam%(A), Rct-Def(19)
Level 4: Shadow Maul -- Obl-Dmg(A), Obl-Acc/Rchg(7), Obl-Dmg/Rchg(9), Obl-Acc/Dmg/Rchg(9), Obl-Acc/Dmg/EndRdx/Rchg(11), Obl-%Dam(11)
Level 6: Power Shield -- RedFrt-Def/EndRdx(A), RedFrt-Def/Rchg(21), RedFrt-Def(21), RedFrt-Def/EndRdx/Rchg(23)
Level 8: Assassin's Eclipse -- SprStlGl-Acc/Dmg(A), SprStlGl-Dmg/Rchg(13), SprStlGl-Acc/Dmg/Rchg(13), SprStlGl-Dmg/EndRdx/Rchg(15), SprStlGl-Acc/Dmg/EndRdx/Rchg(15), SprStlGl-Rchg/Hide%(17)
Level 10: Entropy Shield -- EndRdx-I(A)
Level 12: Build Up -- GssSynFr--Build%(A), GssSynFr--ToHit(19), GssSynFr--ToHit/Rchg(23), GssSynFr--ToHit/Rchg/EndRdx(29), GssSynFr--Rchg/EndRdx(43), GssSynFr--ToHit/EndRdx(43)
Level 14: Teleport -- Tim&SpcMn-Rng(A)
Level 16: Fly -- Flight-I(A)
Level 18: Hover -- LucoftheG-Def/Rchg+(A)
Level 20: Kinetic Dampening -- UnbGrd-ResDam(A), UnbGrd-ResDam/EndRdx(31), UnbGrd-Rchg/ResDam(31), UnbGrd-Max HP%(31), UnbGrd-ResDam/EndRdx/Rchg(33), StdPrt-ResDam/Def+(43)
Level 22: Siphon Life -- ThfofEss-Heal(A), ThfofEss-Heal/Rchg(25), ThfofEss-Acc/Heal(25), ThfofEss-Acc/EndRdx/Heal(27), ThfofEss-Acc/EndRdx/Rchg(27), ThfofEss-+End%(29)
Level 24: Kick -- Empty(A)
Level 26: Tough -- UnbGrd-ResDam(A), UnbGrd-ResDam/EndRdx(33), UnbGrd-EndRdx/Rchg(33), UnbGrd-Rchg/ResDam(34), UnbGrd-ResDam/EndRdx/Rchg(34), GldArm-3defTpProc(34)
Level 28: Weave -- LucoftheG-Def/Rchg+(A), LucoftheG-Def/EndRdx(37), LucoftheG-Def/Rchg(40), LucoftheG-EndRdx/Rchg(45), LucoftheG-Def/EndRdx/Rchg(45), LucoftheG-Def(45)
Level 30: Energy Drain -- PwrTrns-+Heal(A)
Level 32: Midnight Grasp -- Hct-Dmg(A), Hct-Dmg/Rchg(39), Hct-Acc/Dmg/Rchg(39), Hct-Acc/Rchg(39), Hct-Dmg/EndRdx(40), Hct-Dam%(40)
Level 35: Moonbeam -- SprWntBit-Acc/Dmg(A), SprWntBit-Dmg/Rchg(36), SprWntBit-Acc/Dmg/EndRdx(36), SprWntBit-Acc/Dmg/Rchg(36), SprWntBit-Dmg/EndRdx/Acc/Rchg(37), StnoftheM-Dam%(37)
Level 38: Energize -- Prv-Absorb%(A), Prv-Heal(42), Prv-Heal/EndRdx(42), Prv-Heal/Rchg/EndRdx(42)
Level 41: Combat Jumping -- LucoftheG-Def/EndRdx(A), LucoftheG-Def/Rchg(46), LucoftheG-EndRdx/Rchg(46), LucoftheG-Def/EndRdx/Rchg(46), LucoftheG-Def(48), LucoftheG-Def/Rchg+(48)
Level 44: Afterburner -- LucoftheG-Def/Rchg+(A)
Level 47: Teleport Foe -- Range-I(A)
Level 49: Team Teleport -- Tim&SpcMn-Rng(A)
Level 1: Assassination 
Level 1: Brawl -- Empty(A)
Level 1: Quick Form 
Level 1: Prestige Power Dash -- Empty(A)
Level 1: Prestige Power Slide -- Empty(A)
Level 1: Prestige Power Quick -- Empty(A)
Level 1: Prestige Power Rush -- Empty(A)
Level 1: Prestige Power Surge -- Empty(A)
Level 1: Sprint -- Clr-Stlth(A)
Level 2: Rest -- IntRdx-I(A)
Level 4: Ninja Run 
Level 2: Swift -- Empty(A)
Level 2: Health -- Mrc-Rcvry+(A), NmnCnv-Regen/Rcvry+(50), Pnc-Heal/+End(50)
Level 2: Hurdle -- Empty(A)
Level 2: Stamina -- PrfShf-End%(A), PwrTrns-EndMod(48), PwrTrns-+Heal(50)
Level 50: Cryonic Radial Final Judgement 
Level 50: Degenerative Radial Flawless Interface 
Level 50: Assault Core Embodiment 
Level 50: Ageless Core Epiphany 
Level 50: Cardiac Core Paragon 
------------