Plant/Psi Dominator - Mids included - Feel like I'm missing something

I just completed a prototype build for my Plant/Psi Dom, and I'm worried that it's... too good. It's perma-dom, perma-hasten, and softcapped to smash/lethal. By just stacking holds with Strangler, it can get to mag 76 before the first holds start to drop! Drain Psyche is almost perma, and with it fully saturated the Regen is ridiculous - full hp in 12 seconds, gross hp/sec outperforms my WP scrapper with RttC saturated.

I know that Plant and Psi are both some of the most powerful sets for Doms, but aside from the ATO's, procs, and one (unnecessary) Hami O most of the sets are relatively cheap - even the older sets only run about 20-40 mil apiece. I'm sure I'm missing something, I shouldn't be getting this much out of a build without purple sets. Am I missing something important?

Hero Plan by Mids' Hero Designer 1.96
http://www.cohplanner.com/

Click this DataLink to open the build!

Level 50 Magic Dominator
Primary Power Set: Plant Control
Secondary Power Set: Psionic Assault
Power Pool: Speed
Power Pool: Fighting
Power Pool: Leaping
Power Pool: Leadership
Ancillary Pool: Ice Mastery

Hero Profile:
Level 1: Strangler -- BasGaze-Acc/Hold(A), BasGaze-Rchg/Hold(3), BasGaze-Acc/EndRdx/Rchg/Hold(3), BasGaze-EndRdx/Rchg/Hold(5)
Level 1: Psionic Dart -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/Rchg(45), Dev'n-Acc/Dmg/Rchg(46), Dev'n-Acc/Dmg/EndRdx/Rchg(48)
Level 2: Mind Probe -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(5), KntkC'bat-Dmg/Rchg(7), KntkC'bat-Dmg/EndRdx/Rchg(7)
Level 4: Telekinetic Thrust -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(9), KntkC'bat-Dmg/Rchg(9), KntkC'bat-Dmg/EndRdx/Rchg(11)
Level 6: Hasten -- RechRdx-I(A), RechRdx-I(11), RechRdx-I(13), RechRdx-I(13), RechRdx-I(43), RechRdx-I(43)
Level 8: Seeds of Confusion -- Mlais-Acc/Rchg(A), Mlais-Conf/Rng(15), Mlais-Acc/Conf/Rchg(15), Mlais-Dam%(17), Mlais-EndRdx/Conf(17), RechRdx-I(19)
Level 10: Boxing -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(19), KntkC'bat-Dmg/Rchg(21), KntkC'bat-Dmg/EndRdx/Rchg(21)
Level 12: Combat Jumping -- LkGmblr-Rchg+(A)
Level 14: Tough -- RctvArm-ResDam/EndRdx/Rchg(A), RctvArm-ResDam(23), RctvArm-ResDam/EndRdx(23), RctvArm-EndRdx(25)
Level 16: Psychic Scream -- Posi-Acc/Dmg(A), Posi-Dmg/Rchg(37), Posi-Dmg/Rng(40), Posi-Dam%(40), Posi-Acc/Dmg/EndRdx(42)
Level 18: Vines -- BasGaze-Acc/Hold(A), BasGaze-Rchg/Hold(25), BasGaze-EndRdx/Rchg/Hold(27), BasGaze-Acc/EndRdx/Rchg/Hold(27)
Level 20: Drain Psyche -- Dct'dW-Rchg(A), Dct'dW-Heal(46), Dct'dW-Heal/EndRdx/Rchg(46), Dct'dW-Heal/Rchg(48), Dct'dW-Heal/EndRdx(48)
Level 22: Weave -- LkGmblr-Rchg+(A), LkGmblr-Def(34), LkGmblr-Def/EndRdx(37)
Level 24: Maneuvers -- LkGmblr-Rchg+(A), LkGmblr-Def(33), LkGmblr-Def/EndRdx(33)
Level 26: Carrion Creepers -- AotDominator-Acc/Conf/Hold/Immob/Sleep/Stun/Fear(A), AotDominator-Conf/Hold/Immob/Sleep/Stun/Fear/Rchg(29), AotDominator-EndRdx/Rchg(29), AotDominator-Acc/Conf/Hold/Immob/Sleep/Stun/Fear/EndRdx(31), AotDominator-Acc/Conf/Hold/Immob/Sleep/Stun/Fear/EndRdx/Rchg(31), AotDominator-Rchg/+Dmg%(31)
Level 28: Subdue -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/Rchg(50), Dev'n-Acc/Dmg/Rchg(50), Dev'n-Acc/Dmg/EndRdx/Rchg(50)
Level 30: Assault -- EndRdx-I(A)
Level 32: Fly Trap -- C'Arms-Dmg/EndRdx(A), C'Arms-EndRdx/Dmg/Rchg(33), C'Arms-Acc/Dmg/Rchg(34), C'Arms-Acc/Dmg(34)
Level 35: Psionic Lance -- Mantic-Acc/Dmg(A), Mantic-Dmg/ActRdx/Rchg(36), Mantic-Dmg/EndRdx/Rchg(36), Mantic-Dmg/EndRdx(36), Mantic-Dam%(37)
Level 38: Psychic Shockwave -- Oblit-%Dam(A), Oblit-Dmg(39), Oblit-Dmg/Rchg(39), Oblit-Acc/Dmg/Rchg(39), Oblit-Acc/Dmg/EndRdx/Rchg(40)
Level 41: Sleet -- Posi-Dam%(A), ImpSwft-Dam%(42), LdyGrey-Rchg/EndRdx(42), LdyGrey-%Dam(43)
Level 44: Frozen Armor -- LkGmblr-Rchg+(A), LkGmblr-Def(45), LkGmblr-Def/EndRdx(45)
Level 47: Tactics -- HO:Membr(A)
Level 49: Vengeance -- LkGmblr-Rchg+(A)
Level 1: Brawl -- Empty(A)
Level 1: Domination
Level 1: Prestige Power Dash -- Empty(A)
Level 1: Prestige Power Slide -- Empty(A)
Level 1: Prestige Power Quick -- Empty(A)
Level 1: Prestige Power Rush -- Empty(A)
Level 1: Prestige Power Surge -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 4: Ninja Run
Level 2: Swift -- Empty(A)
Level 2: Health -- Numna-Regen/Rcvry+(A)
Level 2: Hurdle -- Empty(A)
Level 2: Stamina -- P'Shift-End%(A)
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I have a plant/psi/fire, similarly built, and yeah it is actually that amazing.

I am currently running it as plant/psi/ice and it's still awesome. The fact that plant/psi permadoms can also have access to Sleet is just ridiculous.