Critique: Spines/Invulnerability Scrapper

Okay, so this is my Spines/Invul scrapper build I fixed up. Went for capped defenses with few in range without losing out on damage. Went with Agility for the defense/end. helper, and I have all the accolades. Give me your opinions on what I could change to improve in your opinion.

Hero Plan by Mids' Hero Designer 1.953
http://www.cohplanner.com/

Click this DataLink to open the build!

Verderbnis: Level 50 Mutation Scrapper
Primary Power Set: Spines
Secondary Power Set: Invulnerability
Power Pool: Leaping
Power Pool: Speed
Power Pool: Fighting
Power Pool: Leadership
Ancillary Pool: Body Mastery

Hero Profile:
Level 1: Lunge -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(11), KntkC'bat-Dmg/Rchg(13), KntkC'bat-Dmg/EndRdx/Rchg(13), HO:Nucle(31)
Level 1: Resist Physical Damage -- Aegis-ResDam(A), Aegis-ResDam/EndRdx(7), Aegis-ResDam/Rchg(7), GA-3defTpProc(9), S'fstPrt-ResDam/Def+(25)
Level 2: Temp Invulnerability -- RctvArm-ResDam(A), RctvArm-ResDam/EndRdx(3), RctvArm-ResDam/Rchg(3), RctvArm-EndRdx(29)
Level 4: Spine Burst -- Armgdn-Dmg(A), Armgdn-Dmg/Rchg(5), Armgdn-Acc/Dmg/Rchg(5), Armgdn-Acc/Rchg(9), Armgdn-Dmg/EndRdx(11)
Level 6: Build Up -- Rec'dRet-ToHit(A), Rec'dRet-ToHit/Rchg(15), RechRdx-I(34)
Level 8: Dull Pain -- Dct'dW-Heal/EndRdx(A), Dct'dW-Heal(17), Dct'dW-EndRdx/Rchg(37), Dct'dW-Heal/Rchg(37), Dct'dW-Rchg(37)
Level 10: Impale -- Thundr-Dmg/EndRdx(A), Thundr-Dmg/Rchg(23), Thundr-Acc/Dmg/Rchg(23), Thundr-Acc/Dmg(33), Thundr-Acc/Dmg/EndRdx(33), Thundr-Dmg/EndRdx/Rchg(33)
Level 12: Combat Jumping -- LkGmblr-Rchg+(A)
Level 14: Super Jump -- Jump-I(A)
Level 16: Hasten -- RechRdx-I(A), RechRdx-I(27), RechRdx-I(17)
Level 18: Unyielding -- Aegis-ResDam/EndRdx(A), Aegis-EndRdx/Rchg(19), Aegis-ResDam(27)
Level 20: Quills -- Erad-Dmg(A), Erad-%Dam(21), Erad-Acc/Dmg/Rchg(21), Erad-Acc/Rchg(15), Erad-Dmg/Rchg(42), Erad-Acc/Dmg/EndRdx/Rchg(43)
Level 22: Kick -- Dmg-I(A)
Level 24: Tough -- RctvArm-ResDam/EndRdx(A), RctvArm-EndRdx(25), RctvArm-ResDam/Rchg(34), RctvArm-ResDam(42)
Level 26: Resist Elements -- RctvArm-ResDam/EndRdx(A), RctvArm-ResDam/Rchg(19), RctvArm-ResDam(29), RctvArm-EndRdx(43)
Level 28: Ripper -- Erad-Dmg(A), Erad-Dmg/Rchg(36), Erad-Acc/Dmg/Rchg(40), HO:Nucle(48), HO:Nucle(42), HO:Nucle(40)
Level 30: Invincibility -- LkGmblr-Rchg+(A), GftotA-Def(31), GftotA-Def/EndRdx(36), GftotA-Def/EndRdx/Rchg(46)
Level 32: Weave -- LkGmblr-Rchg+(A), GftotA-Def/EndRdx(34), GftotA-Def(36), GftotA-Def/EndRdx/Rchg(43)
Level 35: Maneuvers -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(31)
Level 38: Throw Spines -- Ragnrk-Dmg/EndRdx(A), Ragnrk-Acc/Rchg(39), Ragnrk-Acc/Dmg/Rchg(39), Ragnrk-Dmg/Rchg(39), Ragnrk-Dmg(40)
Level 41: Conserve Power -- RechRdx-I(A)
Level 44: Confront -- Mocking-Taunt(A), Mocking-Taunt/Rchg(45), Mocking-Taunt/Rchg/Rng(45), Mocking-Acc/Rchg(45), Mocking-Taunt/Rng(46), Mocking-Rchg(46)
Level 47: Physical Perfection -- Numna-Regen/Rcvry+(A), Numna-Heal(48), Mrcl-Rcvry+(48), EndMod-I(50), EndMod-I(50)
Level 49: Tough Hide -- LkGmblr-Rchg+(A), LkGmblr-Def(50)
Level 0: Freedom Phalanx Reserve
Level 0: Portal Jockey
Level 0: The Atlas Medallion
Level 50: Agility Core Paragon
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Clrty-Stlth(A)
Level 2: Rest -- Heal-I(A)
Level 1: Critical Hit
Level 4: Ninja Run
Level 2: Swift -- Run-I(A)
Level 2: Health -- Heal-I(A)
Level 2: Hurdle -- Jump-I(A)
Level 2: Stamina -- EndMod-I(A)

heh, 45's across the board.

Hero Plan by Mids' Hero Designer 1.953
http://www.cohplanner.com/

Click this DataLink to open the build!

Verderbnis: Level 50 Mutation Scrapper
Primary Power Set: Spines
Secondary Power Set: Invulnerability
Power Pool: Leaping
Power Pool: Speed
Power Pool: Fighting
Power Pool: Leadership
Ancillary Pool: Body Mastery

Hero Profile:
Level 1: Lunge -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(11), KntkC'bat-Dmg/Rchg(13), KntkC'bat-Dmg/EndRdx/Rchg(13), HO:Nucle(15)
Level 1: Resist Physical Damage -- S'fstPrt-ResDam/Def+(A), Aegis-ResDam/Rchg(9), Aegis-ResDam(25), Aegis-Psi/Status(37)
Level 2: Temp Invulnerability -- RctvArm-ResDam(A), RctvArm-ResDam/EndRdx(3), RctvArm-ResDam/Rchg(3), RctvArm-EndRdx(19)
Level 4: Spine Burst -- Oblit-Dmg(A), Oblit-Acc/Rchg(5), Oblit-Dmg/Rchg(5), Oblit-Acc/Dmg/EndRdx/Rchg(9), Oblit-%Dam(11), Oblit-Acc/Dmg/Rchg(29)
Level 6: Build Up -- AdjTgt-Rchg(A), AdjTgt-ToHit/Rchg(7)
Level 8: Dull Pain -- Dct'dW-Heal/EndRdx(A), Dct'dW-Heal/Rchg(15), Dct'dW-Heal(17), Dct'dW-Rchg(31), Dct'dW-EndRdx/Rchg(37)
Level 10: Impale -- Thundr-Dmg/EndRdx(A), Thundr-Dmg/Rchg(23), Thundr-Acc/Dmg/Rchg(23), Thundr-Acc/Dmg(33), Thundr-Acc/Dmg/EndRdx(33), Thundr-Dmg/EndRdx/Rchg(33)
Level 12: Combat Jumping -- LkGmblr-Rchg+(A), LkGmblr-Def(21)
Level 14: Super Jump -- Jump-I(A)
Level 16: Hasten -- RechRdx-I(A), RechRdx-I(27), RechRdx-I(17)
Level 18: Unyielding -- Aegis-ResDam/EndRdx(A), Aegis-EndRdx/Rchg(19), Aegis-ResDam(27)
Level 20: Quills -- Erad-%Dam(A), Erad-Acc/Dmg/Rchg(21), Erad-Acc/Rchg(31), Armgdn-Dmg/EndRdx(42)
Level 22: Kick -- Dmg-I(A)
Level 24: Tough -- RctvArm-ResDam/EndRdx(A), RctvArm-EndRdx(25), RctvArm-ResDam/EndRdx/Rchg(29), RctvArm-ResDam/Rchg(34)
Level 26: Resist Elements -- GA-3defTpProc(A), Aegis-ResDam/EndRdx(36), Aegis-ResDam/Rchg(40), Aegis-ResDam(43)
Level 28: Ripper -- Erad-Dmg(A), Erad-Dmg/Rchg(36), Erad-Acc/Dmg/Rchg(40), HO:Nucle(42)
Level 30: Invincibility -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(31), LkGmblr-Def(34), Rec'dRet-ToHit(36), Rec'dRet-ToHit/Rchg(43)
Level 32: Weave -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(34), LkGmblr-Def/EndRdx/Rchg(42)
Level 35: Maneuvers -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(37), LkGmblr-Def/EndRdx/Rchg(43)
Level 38: Throw Spines -- Ragnrk-Dmg/EndRdx(A), Ragnrk-Acc/Rchg(39), Ragnrk-Acc/Dmg/Rchg(39), Ragnrk-Dmg/Rchg(39), Ragnrk-Dmg(40)
Level 41: Conserve Power -- RechRdx-I(A)
Level 44: Confront -- Mocking-Taunt(A), Mocking-Taunt/Rchg(45), Mocking-Taunt/Rchg/Rng(45), Mocking-Acc/Rchg(45), Mocking-Taunt/Rng(46), Mocking-Rchg(46)
Level 47: Physical Perfection -- Numna-Regen/Rcvry+(A), Numna-Heal(48), Mrcl-Rcvry+(48), Numna-Heal/EndRdx(50), EndMod-I(50)
Level 49: Tough Hide -- LkGmblr-Rchg+(A), LkGmblr-Def(50)
Level 0: Freedom Phalanx Reserve
Level 0: Portal Jockey
Level 0: The Atlas Medallion
Level 50: Agility Core Paragon
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Clrty-Stlth(A)
Level 2: Rest -- Heal-I(A)
Level 1: Critical Hit
Level 4: Ninja Run
Level 2: Swift -- Run-I(A)
Level 2: Health -- Heal-I(A), Heal-I(7)
Level 2: Hurdle -- Jump-I(A)
Level 2: Stamina -- EndMod-I(A)

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In the first reply build, no performance shifter procs at all and a critically underslotted Stamina. I'm not sure that this build will play with any hopes of keeping endurance up at any level below 50, and even at 50 I don't think the Agility Alpha can make up for the lack of attention to stamina. You'd need to take Ageless to function.

Well, the build posted by me is close(ish?) to finished (need to finish slotting about 7 powers) and no end problems really; and when I have them, they're from my two attacks with no IOs yet and conserve power fixes the problem. I see how doing anything below 50 is going to destroy me, but I'm planning for this build to be my "Level 50 missions/iTrials/TFs" then creating a cheaper build to run anything lower level enough to take away "Physical Perfection".

with t4 Agility, Stamina and Physical Perfection are sitting at 87% enhanced.

There's also 2 slots left to place (for 2 Perform procs if wanted)