After some sagely advice, second attempt:
Hero Plan by Mids' Hero Designer 1.704
http://www.cohplanner.com/
Click this DataLink to open the build!
Mesocyclone: Level 50 Magic Controller
Primary Power Set: Illusion Control
Secondary Power Set: Storm Summoning
Power Pool: Speed
Power Pool: Fitness
Power Pool: Teleportation
Power Pool: Flight
Ancillary Pool: Ice Mastery
Hero Profile:
Level 1: Spectral Wounds -- Decim-Acc/Dmg(A), Decim-Dmg/EndRdx(3), Decim-Dmg/Rchg(3), Decim-Acc/EndRdx/Rchg(5), Decim-Acc/Dmg/Rchg(5)
Level 1: Gale -- Acc-I(A)
Level 2: Blind -- Thundr-Acc/Dmg(A), Thundr-Dmg/EndRdx(9), Thundr-Dmg/Rchg(9), Thundr-Acc/Dmg/Rchg(15), Thundr-Acc/Dmg/EndRdx(17), Thundr-Dmg/EndRdx/Rchg(17)
Level 4: O2 Boost -- Dct'dW-EndRdx/Rchg(A), Dct'dW-Heal/EndRdx(46), Dct'dW-Heal/Rchg(50), Dct'dW-Heal/EndRdx/Rchg(50), Dct'dW-Heal(50)
Level 6: Hasten -- RechRdx-I(A), RechRdx-I(7), RechRdx-I(7)
Level 8: Hurdle -- Jump-I(A)
Level 10: Steamy Mist -- LkGmblr-Rchg+(A), RedFtn-Def/EndRdx/Rchg(11), RedFtn-Def/EndRdx(11), RedFtn-Def/Rchg(13), RedFtn-EndRdx/Rchg(13), RedFtn-Def(15)
Level 12: Recall Friend -- EndRdx-I(A)
Level 14: Super Speed -- Run-I(A)
Level 16: Health -- Heal-I(A)
Level 18: Phantom Army -- ExRmnt-Acc/Rchg(A), ExRmnt-Acc/Dmg(19), ExRmnt-Dmg/EndRdx(19), ExRmnt-Acc/Dmg/Rchg(21), ExRmnt-EndRdx/Dmg/Rchg(21), ExRmnt-+Res(Pets)(23)
Level 20: Stamina -- EndMod-I(A), EndMod-I(36), EndMod-I(36)
Level 22: Freezing Rain -- Posi-Dam%(A), Posi-Acc/Dmg/EndRdx(23), Posi-Dmg/Rng(25), Posi-Dmg/Rchg(25), Posi-Dmg/EndRdx(31)
Level 24: Flash -- BasGaze-Acc/EndRdx/Rchg/Hold(A), BasGaze-EndRdx/Rchg/Hold(31), BasGaze-Rchg/Hold(31), BasGaze-Acc/Rchg(34)
Level 26: Spectral Terror -- Abys-Dam%(A), Abys-Acc/Fear/Rchg(27), Abys-Fear/Rng(27), Abys-Acc/EndRdx(29), Abys-EndRdx/Fear(29)
Level 28: Hurricane -- DisWord-ToHitDeb(A), DisWord-ToHitDeb/Rchg(40), DisWord-ToHitDeb/Rchg/EndRdx(43)
Level 30: Hover -- LkGmblr-Rchg+(A)
Level 32: Phantasm -- BldM'dt-Acc/Dmg(A), BldM'dt-Dmg/EndRdx(33), BldM'dt-Acc/EndRdx(33), BldM'dt-Acc/Dmg/EndRdx(33), BldM'dt-Acc(34), BldM'dt-Dmg(34)
Level 35: Tornado -- BldM'dt-Acc/Dmg(A), BldM'dt-Dmg/EndRdx(36), BldM'dt-Acc/EndRdx(37), BldM'dt-Acc/Dmg/EndRdx(37), BldM'dt-Acc(37), BldM'dt-Dmg(40)
Level 38: Lightning Storm -- Decim-Acc/Dmg(A), Decim-Dmg/EndRdx(39), Decim-Dmg/Rchg(39), Decim-Acc/EndRdx/Rchg(39), Decim-Acc/Dmg/Rchg(40)
Level 41: Ice Blast -- Thundr-Acc/Dmg(A), Thundr-Dmg/EndRdx(42), Thundr-Dmg/Rchg(42), Thundr-Acc/Dmg/Rchg(42), Thundr-Acc/Dmg/EndRdx(43), Thundr-Dmg/EndRdx/Rchg(43)
Level 44: Frozen Armor -- LkGmblr-Rchg+(A), RedFtn-Def/EndRdx(45), RedFtn-Def/Rchg(45), RedFtn-EndRdx/Rchg(45), RedFtn-Def/EndRdx/Rchg(46), RedFtn-Def(46)
Level 47: Ice Storm -- Posi-Dmg/EndRdx(A), Posi-Dmg/Rchg(48), Posi-Dmg/Rng(48), Posi-Acc/Dmg/EndRdx(48)
Level 49: Hibernate -- RechRdx-I(A)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Containment
Level 6: Ninja Run
------------
Set Bonus Totals:
- 7% DamageBuff(Smashing)
- 7% DamageBuff(Lethal)
- 7% DamageBuff(Fire)
- 7% DamageBuff(Cold)
- 7% DamageBuff(Energy)
- 7% DamageBuff(Negative)
- 7% DamageBuff(Toxic)
- 7% DamageBuff(Psionic)
- 1.25% Defense(Smashing)
- 1.25% Defense(Lethal)
- 7.5% Defense(Fire)
- 7.5% Defense(Cold)
- 15.3% Defense(Energy)
- 15.3% Defense(Negative)
- 0.63% Defense(Melee)
- 19.4% Defense(Ranged)
- 9.38% Defense(AoE)
- 4.5% Max End
- 4% Enhancement(Heal)
- 2.75% Enhancement(Terrorized)
- 76.3% Enhancement(RechargeTime)
- 41% Enhancement(Accuracy)
- 8% FlySpeed
- 42 HP (4.13%) HitPoints
- 8% JumpHeight
- 8% JumpSpeed
- MezResist(Confused) 4.15%
- MezResist(Held) 2.5%
- MezResist(Immobilize) 12.4%
- MezResist(Sleep) 2.5%
- MezResist(Stun) 5.8%
- MezResist(Terrorized) 4.7%
- 14% (0.23 End/sec) Recovery
- 10% (0.42 HP/sec) Regeneration
- 10% Resistance(Smashing)
- 10% Resistance(Lethal)
- 16.9% Resistance(Fire)
- 16.9% Resistance(Cold)
- 10% Resistance(Energy)
- 10% Resistance(Negative)
- 10% Resistance(Toxic)
- 10% Resistance(Psionic)
- 8% RunSpeed
--@Hallow Hal--
Looking a lot better. 
The more you play with it, the more you'll get familiar with what IO sets do what and what's important to you.
Leader of Renaissance de la Veritas
Moderator of ChampioNexus
Amygdala's Guide to the Cathedral of Pain Trial
First look into Invention Sets. Be gentle.
Hero Plan by Mids' Hero Designer 1.704
http://www.cohplanner.com/
Click this DataLink to open the build!
Mesocyclone: Level 50 Magic Controller
Primary Power Set: Illusion Control
Secondary Power Set: Storm Summoning
Power Pool: Speed
Power Pool: Fitness
Power Pool: Teleportation
Power Pool: Flight
Ancillary Pool: Ice Mastery
Hero Profile:
Level 1: Spectral Wounds -- GJ-Acc/Dmg(A), GJ-Dam/Rech(3), GJ-Acc/Dmg/End/Rech(5), GJ-Dam%(7), GJ-Acc/End/Rech(9), GJ-Dam/End/Rech(13)
Level 1: Gale -- Acc-I(A)
Level 2: Blind -- Decim-Acc/Dmg(A), Decim-Dmg/EndRdx(3), Decim-Dmg/Rchg(5), Decim-Acc/EndRdx/Rchg(7), Decim-Acc/Dmg/Rchg(9), Decim-Build%(13)
Level 4: Deceive -- Bfdlng-Acc/Rchg(A), Bfdlng-EndRdx/Conf(15), Bfdlng-Acc/EndRdx(17), Bfdlng-Conf/Rng(17), Bfdlng-Acc/Conf/Rchg(43)
Level 6: Hasten -- RechRdx-I(A), RechRdx-I(40), RechRdx-I(50)
Level 8: Hurdle -- Jump-I(A)
Level 10: Steamy Mist -- Krma-Def/EndRdx(A), Krma-Def/Rchg(11), Krma-ResKB(11)
Level 12: Recall Friend -- EndRdx-I(A)
Level 14: Super Speed -- Clrty-EndRdx(A), Clrty-Stlth(15)
Level 16: Health -- Heal-I(A)
Level 18: Phantom Army -- ExRmnt-Acc/Rchg(A), ExRmnt-Acc/Dmg(19), ExRmnt-Dmg/EndRdx(19), ExRmnt-Acc/Dmg/Rchg(23), ExRmnt-EndRdx/Dmg/Rchg(23), ExRmnt-+Res(Pets)(25)
Level 20: Stamina -- EndMod-I(A), EndMod-I(21), EndMod-I(21)
Level 22: Freezing Rain -- AirB'st-Acc/Dmg(A), AirB'st-Dmg/EndRdx(25), AirB'st-Dmg/Rchg(27), AirB'st-Dmg/Rng(37)
Level 24: Flash -- G'Wdw-Acc/Rchg(A), G'Wdw-Dam%(31), G'Wdw-Acc/Hold/Rchg(34), G'Wdw-EndRdx/Hold(34), G'Wdw-Acc/EndRdx(37)
Level 26: Spectral Terror -- Abys-Acc/Rchg(A), Abys-Dam%(27), Abys-Acc/Fear/Rchg(31), Abys-EndRdx/Fear(37), Abys-Acc/EndRdx(46)
Level 28: Hurricane -- DarkWD-ToHitdeb/Rchg/EndRdx(A), DarkWD-ToHitDeb/Rchg(29), DarkWD-Rchg/EndRdx(29), DarkWD-ToHitDeb/EndRdx(31), DarkWD-ToHitDeb(46)
Level 30: Hover -- Flight-I(A)
Level 32: Phantasm -- S'bndAl-Acc/Dmg/Rchg(A), S'bndAl-Dmg/Rchg(33), S'bndAl-Acc/Rchg(33), S'bndAl-Dmg/EndRdx(33), S'bndAl-Build%(34)
Level 35: Tornado -- U'Loyal-Acc/Dmg(A), U'Loyal-Dmg/EndRdx(36), U'Loyal-Acc/EndRdx(36), U'Loyal-Acc/Dmg/EndRdx(36)
Level 38: Lightning Storm -- Thundr-Acc/Dmg(A), Thundr-Dmg/EndRdx(39), Thundr-Dmg/Rchg(39), Thundr-Acc/Dmg/Rchg(39), Thundr-Acc/Dmg/EndRdx(40), Thundr-Dmg/EndRdx/Rchg(40)
Level 41: Ice Blast -- Apoc-Dmg(A), Apoc-Dmg/Rchg(42), Apoc-Acc/Dmg/Rchg(42), Apoc-Acc/Rchg(42), Apoc-Dmg/EndRdx(43), Apoc-Dam%(43)
Level 44: Frozen Armor -- Ksmt-Def/EndRdx(A), Ksmt-Def/Rchg(45), Ksmt-EndRdx/Rchg(45), Ksmt-Def/EndRdx/Rchg(45), Ksmt-ToHit+(46)
Level 47: Ice Storm -- Posi-Acc/Dmg(A), Posi-Dmg/EndRdx(48), Posi-Dmg/Rchg(48), Posi-Dmg/Rng(48), Posi-Acc/Dmg/EndRdx(50), Posi-Dam%(50)
Level 49: Hibernate -- RechRdx-I(A)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Containment
Level 6: Ninja Run
------------
Set Bonus Totals:
--@Hallow Hal--