Persoanlly I'd drop Siphon Life from this build, it's got way too long recharge and way too small heal, get Aid Self instead. The 2nd problem of DM/Invul is that it is pretty end hungry so you might want to get conserve power instead of the Petrifying Gaze. Also I'd drop Shadow Puch, if you want another attack get AS instead. Oh and I'd try to fit ToF in, it's a great control power and a great TH debuff 
Other then that this build looks pretty decent to me, enjoy your scrapper 
@Scorpio EU
Problem with Aid Self is it means picking other powers to get it. Dm gets Siphon Life AND Dull pain, which, TBH should be enough if you play invuln right.
He's right about Shadow Punch though. I have it on my brute as it's quick and fury's up it's pretty good, but for a scrapper AS is better as it's an almost 100% knockdown, has -fly and is great for 'soft' control.
Defiant 50's
Many and varied!
@Miss Chief
Won't comment on inv as its not something I've played much.
Shadow Punch is a nice little power, and does, when fully slotted, nice damage. I have AS as well, and wouldn't be without either.
I'd drop the ToHitDebufs from it and Smite, Smite could really like a recharge instaed, and shadow punch doesn't need anything. In fact with the exception of ToF drop all ToHitDebufs, having tried them quite a bit including three slotting shadow punch once apoun a time, its not really worth it, especially if you take ToF as well.
ToF is IMO the set definer for DM, it is perfect agro management tool, plus crowd control. And very few mobs resisit it totally, even Nemesis get got eventually. Can be slotted 1x ACC (has 20% base) 3x ToHitDebuf but I tend to put at least one recharge in too.
Dark consumption I'm currently running with 1x ACC 3x Recharge 2x ENDMod. With FA. But I only need to hit one mob to get most of my END back.
If you can find the slots Midnight Grasp likes Damage. In fact looking at Hero Stats it is in 2nd place to Shadow Maul for damage dealt. Personally I'd drop slots out of Shadow Punch and Shadow Maul to slot this.
AS would go for 2x ACC 1x Recharge, use it for CC rather than damage.
And if you need to drop something to work ToF in, you really should 
, I'd say Shadow Punch much as I love it ToF is better.
[ QUOTE ]
If you can find the slots Midnight Grasp likes Damage. In fact looking at Hero Stats it is in 2nd place to Shadow Maul for damage dealt. Personally I'd drop slots out of Shadow Punch and Shadow Maul to slot this.
[/ QUOTE ]
I have to agree with this one, Midnight Grasp is your 2nd main attack, slot it with 3 DAM SO, use it, love it. Dunno how could I miss this one..
As far as Siphon Life is concerned I think that it is a [censored] power. I used to have only Siphon life, used to have both Siphon Life and Aid Self, used to have Aid Self only, and TBH I prefer the latter one.
If you want to fll your attack chain get energy torrent or LBE, both deal about the same damage as Smite and both are ranged.
Also I'd try to fit at least 1 more EndRed enhancemet into all your toggles, even with DC you will be running out of end vey often.
@Scorpio EU
I think EndRed IOs and Recovery sets will help a lot with the end issues.
@False Fiction - Virtue / Defiant
Current projects - [Glaciologist - Ill/Cold Troller] [Cloudshaper - Storm/Dark Def] [Harald Wartooth - Elec/Psi Domi]
(1)[ QUOTE ]
Shadow Punch is a nice little power, and does, when fully slotted, nice damage. I have AS as well, and wouldn't be without either.
[/ QUOTE ]
I did think about it, but idea wise, it wouldn't fit with everything else going on, that I was doing.
(2)[ QUOTE ]
If you want to fll your attack chain get energy torrent or LBE, both deal about the same damage as Smite and both are ranged.
[/ QUOTE ]
Aye possibly, but build wise it adjusts to the mob I'm fighting and the Epic Power Pool power: Petrifying Gaze = latter ability vs Sappers (which I hate like no-ones business.
(3)[ QUOTE ]
And if you need to drop something to work ToF in, you really should , I'd say Shadow Punch much as I love it ToF is better.
[/ QUOTE ]
Basically follows the same reason as above (1) and (2), build wise it was a possible, but it didn't feel right for me, that and the DMG/sec between Punch/Smite/SM/SoM I have a fair bit going on there, as it was. I might have added AS as I love myself for what it does, but atm I don't feel I really need it -- but I'll consider it as I'm levelling for a later /respec.
(4)[ QUOTE ]
Problem with Aid Self is it means picking other powers to get it. Dm gets Siphon Life AND Dull pain, which, TBH should be enough if you play invuln right.
[/ QUOTE ]
Which was my idea as well.
(5)[ QUOTE ]
Also I'd try to fit at least 1 more EndRed enhancemet into all your toggles, even with DC you will be running out of end vey often.
[/ QUOTE ]
It's possible yes, but after playing my Invul/EM Tanker to 32 (I should play him more sometime soon...) I noticed that even with those two sets combined the END use wasn't really a problem with 1x ENDRED in each toggle and no ENDRED in secondaries. But I'll keep an eye on it as I level and readjust as needed, I think.
(6)[ QUOTE ]
I think EndRed IOs and Recovery sets will help a lot with the end issues.
[/ QUOTE ]
As I said before, and I'll say again... [ QUOTE ]
I'm not detailing for IOs as it's not important in this build.
[I never needed them before -- I don't need them now]
[/ QUOTE ]
I get the feeling people will be doing the same as they did for normal builds, having people try to slip PvP ideas in... in this case: narrow-minded, they won't be able to see past the IOs.. but meh.. that's another debate for another time, tbh. Not that it's a bad idea.. don't get my wrong.. but as I said above and quoted as well...
For sappers I find ToF equally useful as Petrifying Gaze, and as a toss up between that and focused accuracy. 
Actually in use I either AS the sapper so they are lying around or fear them... Normally can kill rest of spawn before they lose the fear, if two sappers are there I hit one with ToF and AS other...
Three and I'm screwed.
What ya think?
Partial idea -- partial Concept build.
Pure PvE -- NO PvP!
I'm not detailing for IOs as it's not important in this build.
[I never needed them before -- I don't need them now]
Comments?
Notes?
Etc ...
NAMETOSET: Level 50 Magic Scrapper
Primary Power Set: Dark Melee
Secondary Power Set: Invulnerability
Power Pool: Flight
Power Pool: Fitness
Power Pool: Speed
Power Pool: Fighting
Ancillary Pool: Darkness Mastery
Hero Profile:
Level 1: Shadow Punch -- Acc(A), Acc(37), ToHitDeb(39), Dmg(40), Dmg(40), Dmg(40)
Level 1: Resist Physical Damage -- ResDam(A), ResDam(3), ResDam(5)
Level 2: Smite -- Acc(A), Acc(3), ToHitDeb(34), Dmg(36), Dmg(37), Dmg(37)
Level 4: Shadow Maul -- Acc(A), Acc(5), ToHitDeb(11), Dmg(13), Dmg(21), Dmg(34)
Level 6: Temp Invulnerability -- ResDam(A), ResDam(7), ResDam(7), EndRdx(9)
Level 8: Dull Pain -- RechRdx(A), RechRdx(9), RechRdx(11), Heal(23), Heal(23), Heal(31)
Level 10: Siphon Life -- Acc(A), Acc(13), RechRdx(31), RechRdx(45), Heal(45), Heal(46)
Level 12: Hover -- Flight(A), Flight(46), Flight(46)
Level 14: Fly -- Flight(A), Flight(15), Flight(15)
Level 16: Unyielding -- ResDam(A), ResDam(17), ResDam(17), EndRdx(43)
Level 18: Dark Consumption -- Acc(A), Acc(19), RechRdx(19), RechRdx(21), RechRdx(43)
Level 20: Swift -- Flight(A), Flight(43), Flight(45)
Level 22: Health -- Heal(A)
Level 24: Stamina -- EndMod(A), EndMod(25), EndMod(25)
Level 26: Soul Drain -- Acc(A), Acc(27), RechRdx(27), RechRdx(31), RechRdx(42)
Level 28: Invincibility -- EndRdx(A), EndRdx(29), EndRdx(29)
Level 30: Hasten -- RechRdx(A), RechRdx(33), RechRdx(33)
Level 32: Midnight Grasp -- Acc(A), Acc(33), RechRdx(34)
Level 35: Tough Hide -- DefBuff(A), DefBuff(36), DefBuff(36)
Level 38: Unstoppable -- RechRdx(A), RechRdx(39), RechRdx(39)
Level 41: Petrifying Gaze -- Hold(A), Hold(42), Range(42)
Level 44: Boxing -- Empty(A)
Level 47: Tough -- ResDam(A), ResDam(48), ResDam(48), EndRdx(48)
Level 49: Weave -- DefBuff(A), DefBuff(50), DefBuff(50), EndRdx(50)
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Level 1: Rest -- RechRdx(A)
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 1: Critical Hit