Rebuilding a Triple Dark Corrupter.

[Ankhani]

As per your "no upper limit" statement, I tossed in a few purple sets for the 4% recovery and 10% recharge. It might sacrifice a little damage, but brings up all the others, I think. I am also including the auto-power accolades, for +MaxHP and +MaxEnd
Mids reporting 3.98 end/sec recovery, +20% Damage, +66.3% recharge, +15.4% To Hit and +90% accuracy.
As an after thought: Have you considered looking at the Dark Mastery Ancillary Pool (i.e. hero epic powers) or are you entrenched for GW's Patron Pool?

Villain Plan by Mids' Villain Designer 1.91
http://www.cohplanner.com/
Click this DataLink to open the build!
dp-19: Level 50 Magic Corruptor
Primary Power Set: Dark Blast
Secondary Power Set: Dark Miasma
Power Pool: Flight
Power Pool: Teleportation
Power Pool: Leadership
Ancillary Pool: Soul Mastery
Villain Profile:
Level 1: Dark Blast

• (A) Decimation - Accuracy/Damage
  
• (3) Decimation - Accuracy/Endurance/Recharge
  
• (13) Decimation - Accuracy/Damage/Recharge
  
• (29) Decimation - Damage/Endurance
  
• (46) Decimation - Damage/Recharge
  

Level 1: Twilight Grasp

• (A) Touch of the Nictus - Healing
  
• (3) Touch of the Nictus - Heal/HitPoints/Regeneration/Recharge
  
• (9) Touch of the Nictus - Accuracy/Healing
  
• (19) Touch of the Nictus - Accuracy/Endurance/Heal/HitPoints/Regeneration
  
• (23) Touch of the Nictus - Accuracy/Endurance/Recharge
  

Level 2: Gloom

• (A) Thunderstrike - Accuracy/Damage/Recharge
  
• (5) Thunderstrike - Accuracy/Damage/Endurance
  
• (15) Thunderstrike - Damage/Endurance/Recharge
  

Level 4: Tar Patch

• (A) Recharge Reduction IO
  
• (5) Tempered Readiness - Endurance/Recharge/Slow
  
• (9) Tempered Readiness - Range/Slow
  

Level 6: Darkest Night

• (A) Dark Watcher's Despair - To Hit Debuff
  
• (7) Dark Watcher's Despair - To Hit Debuff/Recharge/Endurance
  
• (7) Dark Watcher's Despair - To Hit Debuff/Endurance
  
• (43) Dark Watcher's Despair - Recharge/Endurance
  

Level 8: Tenebrous Tentacles

• (A) Gravitational Anchor - Immobilize
  
• (11) Gravitational Anchor - Immobilize/Recharge
  
• (11) Gravitational Anchor - Accuracy/Immobilize/Recharge
  
• (23) Gravitational Anchor - Accuracy/Recharge
  
• (34) Gravitational Anchor - Immobilize/Endurance
  

Level 10: Hover

• (A) HamiO:Microfilament Exposure
  

Level 12: Night Fall

• (A) Ragnarok - Damage
  
• (13) Ragnarok - Damage/Recharge
  
• (37) Ragnarok - Accuracy/Damage/Recharge
  
• (43) Ragnarok - Accuracy/Recharge
  
• (46) Ragnarok - Damage/Endurance
  

Level 14: Fly

• (A) Soaring - FlySpeed
  
• (15) Soaring - Endurance
  
• (17) Soaring - Endurance/FlySpeed
  

Level 16: Shadow Fall

• (A) Steadfast Protection - Resistance/Endurance
  
• (17) Steadfast Protection - Knockback Protection
  
• (19) Steadfast Protection - Resistance/+Def 3%
  
• (25) Gift of the Ancients - Defense/Endurance
  
• (29) Gift of the Ancients - Endurance/Recharge
  

Level 18: Howling Twilight

• (A) Recharge Reduction IO
  

Level 20: Fearsome Stare

• (A) Glimpse of the Abyss - Accuracy/Recharge
  
• (31) Glimpse of the Abyss - Endurance/Fear
  
• (31) Glimpse of the Abyss - Accuracy/Endurance
  
• (31) Glimpse of the Abyss - Chance of Damage(Psionic)
  
• (34) Glimpse of the Abyss - Accuracy/Fear/Recharge
  

Level 22: Recall Friend

• (A) Endurance Reduction IO
  

Level 24: Assault

• (A) Endurance Reduction IO
  

Level 26: Tactics

• (A) Adjusted Targeting - To Hit Buff
  
• (27) Adjusted Targeting - To Hit Buff/Recharge
  
• (27) Adjusted Targeting - To Hit Buff/Endurance/Recharge
  
• (34) Adjusted Targeting - Endurance/Recharge
  
• (36) Adjusted Targeting - To Hit Buff/Endurance
  

Level 28: Petrifying Gaze

• (A) Basilisk's Gaze - Accuracy/Hold
  
• (37) Basilisk's Gaze - Accuracy/Endurance/Recharge/Hold
  
• (37) Basilisk's Gaze - Accuracy/Recharge
  
• (40) Basilisk's Gaze - Endurance/Recharge/Hold
  

Level 30: Torrent

• (A) HamiO:Nucleolus Exposure
  

Level 32: Blackstar

• (A) Scirocco's Dervish - Accuracy/Damage
  
• (33) Scirocco's Dervish - Accuracy/Damage/Endurance
  
• (33) Scirocco's Dervish - Damage/Recharge
  
• (33) Scirocco's Dervish - Accuracy/Recharge
  

Level 35: Teleport Foe

• (A) Endurance Reduction IO
  

Level 38: Dark Servant

• (A) Touch of the Nictus - Healing
  
• (39) Touch of the Nictus - Heal/HitPoints/Regeneration/Recharge
  
• (39) Touch of the Nictus - Accuracy/Healing
  
• (39) Touch of the Nictus - Accuracy/Endurance/Heal/HitPoints/Regeneration
  
• (40) Touch of the Nictus - Accuracy/Endurance/Recharge
  
• (40) Basilisk's Gaze - Accuracy/Endurance/Recharge/Hold
  

Level 41: Dark Embrace

• (A) Impervium Armor - Resistance
  
• (42) Impervium Armor - Resistance/Endurance
  
• (42) Impervium Armor - Resistance/Recharge
  
• (42) Impervium Armor - Resistance/Endurance/Recharge
  
• (43) Endurance Reduction IO
  

Level 44: Soul Storm

• (A) Unbreakable Constraint - Endurance/Hold
  
• (45) Thunderstrike - Accuracy/Damage/Endurance
  
• (45) Unbreakable Constraint - Hold/Recharge
  
• (45) Unbreakable Constraint - Accuracy/Recharge
  
• (46) Unbreakable Constraint - Hold
  
• (50) Unbreakable Constraint - Accuracy/Hold/Recharge
  

Level 47: Summon Mistress

• (A) Expedient Reinforcement - Accuracy/Recharge
  
• (48) Expedient Reinforcement - Endurance/Damage/Recharge
  
• (48) Expedient Reinforcement - Accuracy/Damage/Recharge
  
• (48) Expedient Reinforcement - Damage/Endurance
  

Level 49: Power Boost

• (A) Recharge Reduction IO
  
• (50) Recharge Reduction IO
  
• (50) Recharge Reduction IO
  

------------
Level 1: Brawl

• (A) Empty
  

Level 1: Sprint

• (A) Celerity - +Stealth
  

Level 2: Rest

• (A) Empty
  

Level 1: Scourge
Level 4: Ninja Run
Level 2: Swift

• (A) Flight Speed IO
  

Level 2: Hurdle

• (A) Jumping IO
  

Level 2: Health

• (A) Numina's Convalescence - +Regeneration/+Recovery
  
• (25) Miracle - +Recovery
  
• (36) Miracle - Heal
  

Level 2: Stamina

• (A) Performance Shifter - EndMod
  
• (21) Performance Shifter - EndMod/Recharge
  
• (21) Performance Shifter - EndMod/Accuracy/Recharge
  
• (36) Performance Shifter - Chance for +End
  

------------
Set Bonus Totals:

• 5% DamageBuff(Smashing)
  
• 5% DamageBuff(Lethal)
  
• 5% DamageBuff(Fire)
  
• 5% DamageBuff(Cold)
  
• 5% DamageBuff(Energy)
  
• 5% DamageBuff(Negative)
  
• 5% DamageBuff(Toxic)
  
• 5% DamageBuff(Psionic)
  
• 3% Defense(Smashing)
  
• 3% Defense(Lethal)
  
• 3% Defense(Fire)
  
• 3% Defense(Cold)
  
• 8% Defense(Energy)
  
• 8% Defense(Negative)
  
• 4.875% Defense(Psionic)
  
• 3% Defense(Melee)
  
• 5.5% Defense(Ranged)
  
• 3% Defense(AoE)
  
• 9% Max End
  
• 10% Enhancement(Heal)
  
• 90% Enhancement(Accuracy)
  
• 2.75% Enhancement(Terrorized)
  
• 66.25% Enhancement(RechargeTime)
  
• 5% FlySpeed
  
• 132.52 HP (12.37%) HitPoints
  
• 5% JumpHeight
  
• 5% JumpSpeed
  
• Knockback (Mag -4)
  
• Knockup (Mag -4)
  
• MezResist(Confused) 2.5%
  
• MezResist(Held) 2.5%
  
• MezResist(Immobilize) 5.25%
  
• MezResist(Sleep) 2.5%
  
• MezResist(Stun) 2.5%
  
• MezResist(Terrorized) 2.5%
  
• 32% (0.534 End/sec) Recovery
  
• 10% (0.447 HP/sec) Regeneration
  
• 7.56% Resistance(Fire)
  
• 7.56% Resistance(Cold)
  
• 1.26% Resistance(Energy)
  
• 4.385% Resistance(Negative)
  
• 5% RunSpeed
  

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The Master said: "It is all in vain! I have never yet seen a man who can perceive his own faults and bring the charge home against himself."

>Analects: Book V, Chaper XXVI