I might recommend taking mace mastery instead of soul mastery, because the immobilize power includes fly protection. Hovering enemies are a big weakness for your Genin and Jounin because the game doesn't have mechanics for pets to jump and attack in the air. Also, power up is kind of awesome when you use it with your bubbles. If you're quick about it, you can enhance 6 total bubbles to super boost 3 people.
Villain Plan by Mids' Villain Designer 1.92
http://www.cohplanner.com/
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Tankermind: Level 50 Magic Mastermind
Primary Power Set: Ninjas
Secondary Power Set: Force Field
Power Pool: Leaping
Power Pool: Leadership
Power Pool: Fighting
Power Pool: Presence
Ancillary Pool: Soul Mastery
Villain Profile:
Level 1: Call Genin -- Acc-I(A), Dmg-I(3), Dmg-I(3), Dmg-I(5), Dsrnt-I(5), Dsrnt-I(7)
Level 1: Force Bolt -- Acc-I(A)
Level 2: Deflection Shield -- DefBuff-I(A), DefBuff-I(7), DefBuff-I(9)
Level 4: Insulation Shield -- DefBuff-I(A), DefBuff-I(9), DefBuff-I(11)
Level 6: Train Ninjas -- EndRdx-I(A), EndRdx-I(50)
Level 8: Combat Jumping -- DefBuff-I(A), DefBuff-I(40), DefBuff-I(43), EndRdx-I(43), EndRdx-I(46)
Level 10: Maneuvers -- DefBuff-I(A), DefBuff-I(11), DefBuff-I(17), EndRdx-I(19), EndRdx-I(19)
Level 12: Call Jounin -- Acc-I(A), Dmg-I(13), Dmg-I(13), Dmg-I(15), Dsrnt-I(15), Dsrnt-I(17)
Level 14: Super Jump -- Jump-I(A)
Level 16: Assault -- EndRdx-I(A), EndRdx-I(21)
Level 18: Smoke Flash -- RechRdx-I(A)
Level 20: Dispersion Bubble -- DefBuff-I(A), DefBuff-I(21), DefBuff-I(23), EndRdx-I(23), EndRdx-I(25)
Level 22: Tactics -- ToHit-I(A), ToHit-I(25), ToHit-I(27), EndRdx-I(27), EndRdx-I(29)
Level 24: Kick -- Acc-I(A)
Level 26: Oni -- Acc-I(A), Dmg-I(29), Dmg-I(31), Dmg-I(31), Immob-I(31), Immob-I(33)
Level 28: Tough -- ResDam-I(A), ResDam-I(33), ResDam-I(33), EndRdx-I(34), EndRdx-I(34)
Level 30: Weave -- DefBuff-I(A), DefBuff-I(34), DefBuff-I(36), EndRdx-I(36), EndRdx-I(36)
Level 32: Kuji In Zen -- EndRdx-I(A), EndRdx-I(50)
Level 35: Challenge -- Acc-I(A), Acc-I(37), Taunt-I(37), Taunt-I(37), Taunt-I(39)
Level 38: Provoke -- Acc-I(A), Acc-I(39), Taunt-I(39), Taunt-I(40), Taunt-I(40)
Level 41: Dark Embrace -- ResDam-I(A), ResDam-I(42), ResDam-I(42), EndRdx-I(42), EndRdx-I(43)
Level 44: Oppressive Gloom -- EndRdx-I(A), EndRdx-I(45), Dsrnt-I(45), Dsrnt-I(45), Dsrnt-I(46)
Level 47: Soul Tentacles -- Acc-I(A)
Level 49: Force Bubble -- EndRdx-I(A), EndRdx-I(50)
Level 50: Cardiac Partial Core Revamp
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Level 1: Brawl -- Acc-I(A)
Level 1: Sprint -- Run-I(A)
Level 1: Supremacy
Level 2: Rest -- RechRdx-I(A)
Level 4: Ninja Run
Level 2: Swift -- Run-I(A)
Level 2: Health -- Heal-I(A), Heal-I(48), Heal-I(48)
Level 2: Hurdle -- Jump-I(A)
Level 2: Stamina -- EndMod-I(A), EndMod-I(46), EndMod-I(48)
Works out to 26.7% Defense vs All, 72.2% Smashing/Lethal Resist, 25.5% Negative/Toxic Resist (0% for the rest of the resists).
How would you improve these totals via sets or other power choices?