Darkest Night - if you need the extra slots anywhere else you can probably get away with only 1 end rdx. and seeing as you have 3 slotted stamina and end rdx in all attacks i think 1 would be enough.
Shout - i'd recommend putting a range enhancement in instead of the end rdx, or even a dmg. compared to the other early blast attacks it does massive dmg but its very short range.
Fearsome Stare - consider swapping a fear for a recharge. 2 fears are more than enough to stop the minions, some lts or boses tho will require more than 1 hit tho so its good to have it back up again that bit quicker.
Petrifying Gaze - Again same with fearsome stare for multiple application through out a fight consider swapping a hold with a recharge.
Amplify - I'd try and get 3 recharges in here if slots can be spared.
Assault - theres probably better places to put the 2nd slot. 1 end rdx should be enough.
Dark Servant - with 3 heals in twilight grasp you probably dont need 2 in fluffy (with one heal in mine at lvl 39 he heals around 250). i dont think its the same recharge time as a defenders so another recharge would probably be better.
edit: few other things.
Consider swaping the howling twilight recharge slot (providing you are only going to be using it as a rez power) for an end rdx. with howling twilight and all the acc debuffs you hopefully wont have many team deaths. i've found it more useful to have an end rdx in there so you can use it in the middle of the fight when you are running low on end. if someone dies and it isnt recharged theres always awks or hosp/base 
+ its not like any other rez where by u can only do one at a time. with recall friend in the event of a team wipe you will only need it once
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Shout - i'd recommend putting a range enhancement in instead of the end rdx, or even a dmg. compared to the other early blast attacks it does massive dmg but its very short range.
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Each range enhancement only increases it's range my 4 feet which isn't really worth it in my opinion!
Howling twilight has a short range to, and the two can be used together quite effectively. Ya see, howling twilight ain't just a rez. It's also a slow debuff with a chance to disorietate! It has the same range as shout so they will work pretty well popping them off together, even if no team mates are dead. If the foes are already on tar patch then there recharge will be decimated and they will be slowed to even more of a crawl. Surely it would make sense to try and slot HT for slow; it's not just a rez, it's a trulyawesomemegadebuffTEAMrezofpureandabsoluteowna ge.
if u can spare the slots then yes it would also make a good controlling power. imo the recharge is too long without the slots for it to be of any real use other than a rez/panic button power tho.
Any tips for my build please?
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Exported from Ver: 1.6.8.0 of the CoH_CoV Character Builder - (http://home.comcast.net/~SherkSilver/index.html)
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Name: afroscream
Level: 41
Archetype: Corruptor
Primary: Sonic Blast
Secondary: Dark Miasma
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01) --> Scream==> Acc(1) Dmg(19) Dmg(23) Dmg(23) EndRdx(40)
01) --> Twilight Grasp==> Acc(1) Acc(3) Heal(3) Heal(5) Heal(5)
02) --> Howl==> Acc(2) Dmg(17) Dmg(17) Dmg(19) EndRdx(37)
04) --> Darkest Night==> EndRdx(4) EndRdx(7) TH_DeBuf(7) TH_DeBuf(9) TH_DeBuf(9)
06) --> Tar Patch==> Rechg(6) Rechg(11) Rechg(11)
08) --> Shout==> Acc(8) Dmg(13) Dmg(13) Dmg(15) EndRdx(37)
10) --> Howling Twilight==> Rechg(10)
12) --> Recall Friend==> Rechg(12)
14) --> Teleport==> EndRdx(14) EndRdx(15)
16) --> Swift==> Run(16)
18) --> Health==> Heal(18)
20) --> Stamina==> EndRec(20) EndRec(21) EndRec(21)
22) --> Fearsome Stare==> Acc(22) Fear(25) Fear(25) Fear(27)
24) --> Shadow Fall==> EndRdx(24) EndRdx(33) DmgRes(33) DmgRes(33) DmgRes(34)
26) --> Screech==> Acc(26) DisDur(27) DisDur(29) DisDur(29)
28) --> Petrifying Gaze==> Acc(28) Hold(31) Hold(31) Hold(31)
30) --> Amplify==> Rechg(30)
32) --> Dreadful Wail==> Acc(32) Dmg(34) Dmg(34) Dmg(36) Rechg(36) Rechg(37)
35) --> Assault==> EndRdx(35) EndRdx(36)
38) --> Dark Servant==> Acc(38) Heal(39) Hold(39) TH_DeBuf(39) Heal(40) TH_DeBuf(40)
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01) --> Sprint==> Empty(1)
01) --> Brawl==> Empty(1)
01) --> Scourge==> Empty(1)
02) --> Rest==> Empty(2)
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