I would drop tough and kick as they are not that usful.
Try to get SB earlier as teams will love you for it.
For the blasts go with 2 Acc 3 Dam 1 recharge
Are you going for a PvP build or PvE build ot a mix?
Generally fine, although I'd change all the acc in blizzard with recharge and just hit aim before you use it (which should be whenever it is available).
I'd take both ally boosts as you'll want to group as much as possible - you can solo just fine but the XP you can get in the right team with this build is just silly and you'll find yourself resenting every minute spent not teaming. ID isn't needed, but it is nice to have.
I'd go 2 acc, 2 end, 2 recharge in transference as the sad fact is you always have a 5% chance to miss and it will normally be at the most inconvenient time.
Synaesthetix:if your mum wasn't already dead I would go kill her for bringing
you into the world
Blizzard has a really high accuracy, only thing I have ever missed with it is an eluding stalker, so I would go 3 damage 2 slow 1 recharge. For Transference I would go 2 accuracy 3 end mod 1 recharge, spamming siphon speed gives you a nice recharge boost so its nice to be able to drain higher level bosses end completely.
thePhilosopher Martial Arts/Regen/Fire Scrapper
theRegulator Empathy/Energy/Soul Defender
Total Inertia Ice Blast/Kinetics/Psy Corruptor
Total Inferno Ice Blast/Thermal/Leviathan Corruptor
tough and charged armour combined gives res to smash/lethal akin to an INV brute, its something I would like to try with mine but dont have the room.
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spamming siphon speed gives you a nice recharge boost so its nice to be able to drain higher level bosses end completely.
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Even with spamming powersink, transference and the relatively minor effect of transfusion, you'll be lucky to keep someone on zero. And high level bosses seem to have lvl 32 powers that require 1 end to fire off 
Synaesthetix:if your mum wasn't already dead I would go kill her for bringing
you into the world
FYI, endmod enhancements DONT change the ammount of end u will recover from transfusion. It will increase the ammount of end it leaches to the enemy.
I would say that endmod in this power would be only for pvp purposes.
Peace.
It affects both End drain & recovery for this power.
The recovery is pretty decent unslotted anyway though,
Im lookin forward the reference i saw last time i checked this power, where it told that endmod enhancements doesnt affect the ammount of end it replenish, but i cant see it, so Im gonna try to check it out this weekend...
If im wrong, my apologizes to all who readed that.
Peace.
Yet another build. What do you think of it? Concept is suck 'em dry and freeze their hearts until it stops! *muhahahahaha*
Anyway. I have been hearing so many bad things about patron pets. I tend to like the looks of the GW pet. Someone tell me she isn't that bad?
Name: Niflheim
Level: 50
Archetype: Corruptor
Primary: Ice Blast
Secondary: Kinetics
---------------------------------------------
01) --> Ice Blast==> Dmg(1) Dmg(7) Dmg(7) Acc(9) Acc(31) Acc(34)
01) --> Transfusion==> Acc(1) Acc(3) Acc(3) Heal(5) Heal(5) Heal(29)
02) --> Siphon Power==> Acc(2) Acc(17) Acc(19) Rechg(19) Rechg(31) Rechg(37)
04) --> Ice Bolt==> Dmg(4) Dmg(9) Dmg(11) Acc(11) Acc(34) Acc(34)
06) --> Kick==> Acc(6)
08) --> Aim==> Rechg(8) Rechg(33) Rechg(33)
10) --> Siphon Speed==> Acc(10) Acc(13) Acc(13) Rechg(15) Rechg(15) Rechg(29)
12) --> Hurdle==> Jump(12)
14) --> Hasten==> Rechg(14) Rechg(17) Rechg(21)
16) --> Health==> Heal(16)
18) --> Bitter Ice Blast==> Acc(18) Acc(21) Acc(23) Dmg(23) Dmg(31) Dmg(33)
20) --> Stamina==> EndMod(20) EndMod(25) EndMod(25)
22) --> Combat Jumping==> DefBuf(22)
24) --> Super Jump==> Jump(24) Jump(46)
26) --> Tough==> DmgRes(26) DmgRes(27) DmgRes(27)
28) --> Freeze Ray==> Acc(28) Acc(40) Acc(43) Hold(45) Hold(45) Hold(46)
30) --> Acrobatics==> EndRdx(30)
32) --> Speed Boost==> EndRdx(32)
35) --> Transference==> Acc(35) Acc(36) Acc(36) EndMod(36) EndMod(37) EndMod(37)
38) --> Fulcrum Shift==> Acc(38) Acc(39) Acc(39) Rechg(39) Rechg(40) Rechg(40)
41) --> Blizzard==> Dmg(41) Dmg(42) Dmg(42) Acc(42) Acc(43) Acc(43)
44) --> Charged Armor==> DmgRes(44) DmgRes(45) DmgRes(46)
47) --> Electric Shackles==> Acc(47) Acc(48) Acc(48) Hold(48) Hold(50)
49) --> Power Sink==> EndMod(49) EndMod(50) EndMod(50)
---------------------------------------------
01) --> Sprint==> Jump(1)
01) --> Brawl==> Acc(1)
01) --> Scourge==> Empty(1)
02) --> Rest==> Heal(2)
---------------------------------------------