Hello Nightmare! Glad you joined the boards! Looking over the build it looks pretty solid and very well put together. If you could save up for one, I'd advise seeing if you can get a Gladiator's Armor:+ Defense because it will allow you more flexibility in your build. Other then that it looks good. 
Virtue: @Santorican
Dark/Shield Build Thread
I took a second look and took some slots from One With The Shield at an aim at lowering your endurance usage. If you click the datalink build it will automatically open Mid's for you.
Hero Plan by Mids' Hero Designer 1.401
http://www.cohplanner.com/
Click this DataLink to open the build!
Level 50 Magic Scrapper
Primary Power Set: Dark Melee
Secondary Power Set: Shield Defense
Power Pool: Leaping
Power Pool: Speed
Power Pool: Fitness
Power Pool: Fighting
Hero Profile:
Level 1: Smite -- T'Death-Acc/Dmg(A), T'Death-Dmg/EndRdx(3), T'Death-Dmg/Rchg(3), T'Death-Acc/Dmg/EndRdx(5), T'Death-Dmg/EndRdx/Rchg(5), T'Death-Dam%(9)
Level 1: Deflection -- LkGmblr-Def(A), LkGmblr-Def/EndRdx(9), LkGmblr-Def/EndRdx/Rchg(11), LkGmblr-Rchg+(11)
Level 2: Battle Agility -- RedFtn-Def/EndRdx(A), RedFtn-Def(13), RedFtn-EndRdx(13), RedFtn-Def/EndRdx/Rchg(15), RedFtn-Def/Rchg(15), LkGmblr-Rchg+(46)
Level 4: True Grit -- Numna-Heal(A), Numna-Heal/EndRdx(21), Numna-Regen/Rcvry+(21), S'fstPrt-ResDam/Def+(43)
Level 6: Combat Jumping -- Zephyr-Travel(A), Zephyr-Travel/EndRdx(7), Zephyr-ResKB(7), LkGmblr-Def/EndRdx(23), LkGmblr-Def(43), LkGmblr-Rchg+(46)
Level 8: Siphon Life -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(17), KntkC'bat-Dmg/Rchg(17), KntkC'bat-Dmg/EndRdx/Rchg(19), Nictus-Heal(19), Nictus-Acc/Heal(43)
Level 10: Active Defense -- HO:Membr(A)
Level 12: Hasten -- RechRdx-I(A), RechRdx-I(23), RechRdx-I(25)
Level 14: Super Jump -- Zephyr-Travel(A), Zephyr-Travel/EndRdx(25), Zephyr-ResKB(27)
Level 16: Swift -- Run-I(A)
Level 18: Health -- Mrcl-Heal(A), Mrcl-Rcvry+(36)
Level 20: Stamina -- P'Shift-EndMod(A), P'Shift-End%(27), P'Shift-EndMod/Acc(29), P'Shift-EndMod/Acc/Rchg(29), P'Shift-EndMod/Rchg(31)
Level 22: Against All Odds -- EndRdx-I(A), EndRdx-I(50)
Level 24: Phalanx Fighting -- LkGmblr-Rchg+(A)
Level 26: Soul Drain -- GSFC-ToHit(A), GSFC-ToHit/Rchg(31), GSFC-ToHit/Rchg/EndRdx(31), GSFC-Rchg/EndRdx(33), GSFC-ToHit/EndRdx(33), GSFC-Build%(33)
Level 28: Grant Cover -- LkGmblr-Rchg+(A)
Level 30: Boxing -- Stpfy-Acc/Rchg(A), Stpfy-EndRdx/Stun(50)
Level 32: Midnight Grasp -- Hectmb-Acc/Dmg/Rchg(A), Hectmb-Dmg/Rchg(34), Hectmb-Acc/Rchg(34), Hectmb-Dmg/EndRdx(34), Hectmb-Dam%(36)
Level 35: Shield Charge -- Oblit-Dmg(A), Oblit-Acc/Rchg(36), Oblit-Dmg/Rchg(37), Oblit-Acc/Dmg/Rchg(37), Oblit-Acc/Dmg/EndRdx/Rchg(37), Oblit-%Dam(39)
Level 38: Dark Consumption -- Efficacy-EndMod(A), Efficacy-EndMod/Rchg(39), Efficacy-EndMod/Acc/Rchg(39), Efficacy-Acc/Rchg(40), Efficacy-EndMod/Acc(40), Efficacy-EndMod/EndRdx(40)
Level 41: Tough -- ImpArm-ResDam/EndRdx(A), ImpArm-EndRdx/Rchg(42), ImpArm-ResDam/EndRdx/Rchg(42), ImpArm-ResDam(42)
Level 44: Weave -- RedFtn-Def(A), RedFtn-Def/EndRdx(45), RedFtn-Def/Rchg(45), RedFtn-Def/EndRdx/Rchg(45), RedFtn-EndRdx(46)
Level 47: Shadow Maul -- Armgdn-Dmg/Rchg(A), Armgdn-Acc/Dmg/Rchg(48), Armgdn-Acc/Rchg(48), Armgdn-Dmg/EndRdx(48), Armgdn-Dam%(50)
Level 49: One with the Shield -- Heal-I(A)
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Critical Hit
Virtue: @Santorican
Dark/Shield Build Thread
im worken on a dark melee / sheild defense scrapper that can solo AVs evnetually would be nice
here is my build can somone look over it and see if it needs some adjustments or is workable