This is pretty much my current build. The empty slots are filled with pvp enhancements. But you can still do very good with regular IO enhancements. Also, as I was leveling I was using brilliant leadership for my pets instead of Blood mandate.
Villain Plan by Mids' Villain Designer 1.401
http://www.cohplanner.com/
[u]Click this DataLink to open the build![u]
Level 50 Magic Mastermind
Primary Power Set: Ninjas
Secondary Power Set: Dark Miasma
Power Pool: Fitness
Power Pool: Leaping
Power Pool: Leadership
Power Pool: Speed
Ancillary Pool: Leviathan Mastery
Villain Profile:
Level 1: Call Genin <ul type="square">[*] (A)
Blood Mandate - Accuracy/Damage[*] (3)
Blood Mandate - Damage/Endurance[*] (3)
Blood Mandate - Accuracy[*] (5)
Blood Mandate - Damage[*] (5)
Sovereign Right - Resistance Bonus[*] (7)
Edict of the Master - Defense Bonus[/list]
Level 1: Twilight Grasp <ul type="square">[*] (A)
Touch of the Nictus - Healing[*] (7)
Touch of the Nictus - Heal/HitPoints/Regeneration/Recharge[*] (9)
Touch of the Nictus - Accuracy/Healing[*] (11)
Touch of the Nictus - Accuracy/Endurance/Heal/HitPoints/Regeneration[*] (17)
Touch of the Nictus - Accuracy/Endurance/Recharge[/list]
Level 2: Tar Patch <ul type="square">[*] (A)
Pacing of the Turtle - Damage/Slow[*] (31)
Pacing of the Turtle - Accuracy/Slow[*] (36)
Pacing of the Turtle - Range/Slow[*] (36)
Pacing of the Turtle - Chance of -Recharge[/list]
Level 4: Darkest Night <ul type="square">[*] (A)
Dark Watcher's Despair - To Hit Debuff[*] (9)
Dark Watcher's Despair - To Hit Debuff/Recharge[*] (11)
Dark Watcher's Despair - Chance for Recharge Slow[*] (19)
Dark Watcher's Despair - To Hit Debuff/Endurance[*] (21)
Dark Watcher's Despair - To Hit Debuff/Recharge/Endurance[/list]
Level 6: Train Ninjas <ul type="square">[*] (A)
Endurance Reduction IO[/list]
Level 8: Hurdle <ul type="square">[*] (A)
Jumping IO[/list]
Level 10: Combat Jumping <ul type="square">[*] (A)
Blessing of the Zephyr - Knockback Reduction (4 points)[/list]
Level 12: Call Jounin <ul type="square">[*] (A)
Blood Mandate - Accuracy/Damage[*] (13)
Blood Mandate - Damage/Endurance[*] (13)
Blood Mandate - Accuracy/Endurance[*] (15)
Blood Mandate - Accuracy/Damage/Endurance[*] (15)
Blood Mandate - Accuracy[*] (17)
Blood Mandate - Damage[/list]
Level 14: Health <ul type="square">[*] (A)
Regenerative Tissue - +Regeneration[*] (21)
Miracle - +Recovery[*] (43)
Numina's Convalescence - +Regeneration/+Recovery[*] (43)
Numina's Convalescence - Heal[*] (43)
Miracle - Heal[*] (46)
Numina's Convalescence - Heal/Endurance[/list]
Level 16: Maneuvers <ul type="square">[*] (A)
Luck of the Gambler - Recharge Speed[/list]
Level 18: Shadow Fall <ul type="square">[*] (A)
Empty[*] (19)
Empty[*] (25)
Empty[*] (25)
Empty[*] (31)
Empty[*] (33)
Empty[/list]
Level 20: Fearsome Stare <ul type="square">[*] (A)
Dark Watcher's Despair - To Hit Debuff[*] (37)
Dark Watcher's Despair - To Hit Debuff/Recharge[*] (37)
Dark Watcher's Despair - To Hit Debuff/Recharge/Endurance[*] (40)
Dark Watcher's Despair - To Hit Debuff/Endurance[*] (40)
HamiO:Endoplasm Exposure[/list]
Level 22: Stamina <ul type="square">[*] (A)
Performance Shifter - EndMod[*] (23)
Performance Shifter - Chance for +End[*] (23)
Performance Shifter - EndMod/Accuracy/Recharge[*] (34)
Performance Shifter - EndMod/Recharge[*] (34)
Performance Shifter - EndMod/Accuracy[/list]
Level 24: Tactics <ul type="square">[*] (A)
Gaussian's Synchronized Fire-Control - To Hit Buff[*] (33)
Gaussian's Synchronized Fire-Control - To Hit Buff/Recharge[*] (33)
Gaussian's Synchronized Fire-Control - To Hit Buff/Recharge/Endurance[*] (34)
Gaussian's Synchronized Fire-Control - Chance for Build Up[*] (36)
Gaussian's Synchronized Fire-Control - Recharge/Endurance[*] (50)
Gaussian's Synchronized Fire-Control - To Hit Buff/Endurance[/list]
Level 26: Oni <ul type="square">[*] (A)
Soulbound Allegiance - Damage[*] (27)
Soulbound Allegiance - Damage/Recharge[*] (27)
Soulbound Allegiance - Accuracy/Damage/Recharge[*] (29)
Soulbound Allegiance - Accuracy/Recharge[*] (29)
Soulbound Allegiance - Damage/Endurance[*] (31)
Soulbound Allegiance - Chance for Build Up[/list]
Level 28: Hasten <ul type="square">[*] (A)
Recharge Reduction IO[/list]
Level 30: Super Speed <ul type="square">[*] (A)
Run Speed IO[/list]
Level 32: Kuji In Zen <ul type="square">[*] (A)
Endurance Reduction IO[/list]
Level 35: Petrifying Gaze <ul type="square">[*] (A)
Empty[*] (37)
Empty[/list]
Level 38: Dark Servant <ul type="square">[*] (A)
Siphon Insight - ToHit Debuff[*] (39)
Siphon Insight - Accuracy/ToHit Debuff[*] (39)
Siphon Insight - Accuracy/Recharge[*] (39)
Siphon Insight - ToHit Debuff/Endurance/Recharge[*] (40)
Siphon Insight - Accuracy/Endurance/Recharge[/list]
Level 41: School of Sharks <ul type="square">[*] (A)
Empty[*] (42)
Empty[*] (42)
Empty[*] (42)
Empty[/list]
Level 44: Knockout Blow <ul type="square">[*] (A)
Empty[*] (45)
Empty[*] (45)
Empty[*] (45)
Empty[*] (46)
Empty[*] (46)
Empty[/list]
Level 47: Shark Skin <ul type="square">[*] (A)
Empty[*] (48)
Empty[*] (48)
Empty[*] (48)
Empty[*] (50)
Empty[*] (50)
Empty[/list]
Level 49: Spirit Shark Jaws <ul type="square">[*] (A)
HamiO:Endoplasm Exposure[/list]
------------
Level 1: Brawl <ul type="square">[*] (A)
Empty[/list]
Level 1: Sprint <ul type="square">[*] (A)
Celerity - +Stealth[/list]
Level 2: Rest <ul type="square">[*] (A)
Empty[/list]
Level 1: Supremacy
------------
[u]Set Bonus Totals:[u]<ul type="square">[*]11% DamageBuff(Smashing)[*]11% DamageBuff(Lethal)[*]11% DamageBuff(Fire)[*]11% DamageBuff(Cold)[*]11% DamageBuff(Energy)[*]11% DamageBuff(Negative)[*]11% DamageBuff(Toxic)[*]11% DamageBuff(Psionic)[*]5% Defense[*]5% Defense(Smashing)[*]5% Defense(Lethal)[*]6.88% Defense(Fire)[*]6.88% Defense(Cold)[*]3.13% Defense(Energy)[*]3.13% Defense(Negative)[*]5% Defense(Psionic)[*]4.38% Defense(Melee)[*]6.25% Defense(Ranged)[*]8.13% Defense(AoE)[*]2.25% Max End[*]2.5% Enhancement(JumpSpeed)[*]5% Enhancement(Heal)[*]27% Enhancement(Accuracy)[*]17.5% Enhancement(RechargeTime)[*]2.5% Enhancement(FlySpeed)[*]2.5% Enhancement(JumpHeight)[*]2.5% Enhancement(RunSpeed)[*]14% FlySpeed[*]108.4 HP (13.5%) HitPoints[*]14% JumpHeight[*]14% JumpSpeed[*]Knockback (Mag -4)[*]Knockup (Mag -4)[*]MezResist(Held) 4.4%[*]MezResist(Sleep) 2.75%[*]MezResist(Stun) 3.3%[*]15.5% (0.26 End/sec) Recovery[*]28% (0.94 HP/sec) Regeneration[*]10% Resistance(Smashing)[*]10% Resistance(Lethal)[*]10% Resistance(Fire)[*]10% Resistance(Cold)[*]10% Resistance(Energy)[*]10% Resistance(Negative)[*]10% Resistance(Toxic)[*]10% Resistance(Psionic)[*]14% RunSpeed[*]2% XPDebtProtection[/list]