Just going to make a few points but before I do would like to say that practice makes perfect and forums are here to help so don't be dissuaded if people appear critical or let it put you off posting again in future.
STATS
* If you are going to have to make Concentration checks then you should really aim for more Constitution. With a 32 point build you should be looking at 18 Constitution or even 20 Con.
CLASSES
* Since you dumped Charisma there is some logic in why you didn't take Paladin(2). Without high Reflex you can probably forget about Evasion anyway. I would point out that you would have gained an extra feat from Fighter(1) or an upgrade to your unarmed damage with one extra level of Monk. Dropping Paladin would also allow you to free up your Alignment.
FEATS
* You don't need Greater Spell Focus: Necromancy until 12th level so you could swap it round with Extend Spell and get more value out of your spells earlier on.
* Just Two Weapon Fighting on it's own? You won't proc many offhand attacks
* Improved Mental Toughness. Is 60 ish SP really worth a feat?
* Lack of Cleave & Great Cleave is going to really hurt your combat potential
So if you went Fighter(1) instead of Paladin(1) and dropped Improved Mental Toughness you could pick Improved Two Weapon Fighting and Greater Two Weapon Fighting or Cleave and Great Cleave.
SPELLS
* You missed Lesser Death Aura at level 2
* Knock probably won't be reliable without a high Intelligence modifier. Swap for Owl's Wisdom and get more Will & AC
* Touch of Idiocy? Ironic but useless, swap for Cat's Grace or False Life
* Invisibility. Lesser/Death Aura is going to blow your invis so maybe swap for something else
* you missed Stoneskin at level 4
* You missed Reconstruct at level 6!
* Create Undead at level 6? They are only CR12 summons, swap it for Reconstruct or Globe of Invulnerability
I did a 28 point build for a Barbarian type fighting Pale master. Put the extra +4 points for a 32 point build into Intelligence. Unlike a normal Barbarian you have a lot of concealment for defense which is what I think you were aiming for with your Warforged/Wraith. I put Quicken Spell in this so no worries about Concentration checks. Developed Repair spellpower rather than anything else to give you the option to play normally without the shroud. Skill points went into Jump, Repair and Balance.
Code:
Character Plan by DDO Character Planner Version 03.16.01
DDO Character Planner Home Page
Warforged Necrobarb
Level 20 True Neutral Warforged Male
(2 Fighter \ 6 Barbarian \ 12 Wizard)
Hit Points: 342
Spell Points: 721
BAB: 14\14\19\24
Fortitude: 18
Reflex: 5
Will: 8
Starting Feat/Enhancement
Abilities Base Stats Modified Stats
(28 Point) (Level 1) (Level 20)
Strength 18 24
Dexterity 8 8
Constitution 18 22
Intelligence 10 12
Wisdom 6 6
Charisma 6 6
Level 1 (Wizard)
Feat: (Selected) Power Attack
Feat: (Wizard Bonus) Quicken Spell
Spell (1): Shield
Spell (1): Repair Light Damage
Spell (1): Expeditious Retreat
Enhancement: Repair Manipulation I
Enhancement: Wizard Energy of the Scholar I
Level 2 (Wizard)
Spell (1): Nightshield
Spell (1): Detect Secret Doors
Enhancement: Wizard Improved Quickening I
Enhancement: Reconstructive Spellcasting I
Enhancement: Wizard Intelligence I
Enhancement: Warforged Inscribed Armor I
Level 3 (Fighter)
Feat: (Fighter Bonus) Cleave
Feat: (Selected) Toughness
Enhancement: Racial Toughness I
Enhancement: Fighter Toughness I
Enhancement: Warforged Constitution I
Level 4 (Barbarian)
Ability Raise: STR
Enhancement: Barbarian Damage Boost I
Enhancement: Fighter Haste Boost I
Enhancement: Barbarian Power Attack I
Enhancement: Warforged Power Attack I
Level 5 (Fighter)
Feat: (Fighter Bonus) Great Cleave
Enhancement: Fighter Strength I
Level 6 (Barbarian)
Feat: (Selected) Two Handed Fighting
Enhancement: Barbarian Extend Rage I
Enhancement: Barbarian Extra Rage I
Enhancement: Racial Toughness II
Enhancement: Barbarian Constitution I
Level 7 (Wizard)
Spell (2): Lesser Death Aura
Spell (2): Resist Energy
Enhancement: Mighty Reconstruction I
Enhancement: Repair Manipulation II
Level 8 (Wizard)
Ability Raise: STR
Spell (2): Blur
Spell (2): Fox's Cunning
Enhancement: Warforged Constitution II
Level 9 (Wizard)
Feat: (Selected) Improved Two Handed Fighting
Feat: (Wizard Bonus) Spell Focus: Necromancy
Spell (3): Displacement
Spell (3): Haste
Enhancement: Wizard Energy of the Scholar II
Enhancement: Warforged Great Weapon Aptitude I
Enhancement: Warforged Great Weapon Aptitude II
Level 10 (Wizard)
Spell (3): Rage
Spell (3): Repair Serious Damage
Enhancement: Wizard Pale Master I
Enhancement: Shroud of the Zombie
Level 11 (Wizard)
Spell (4): Death Aura
Spell (4): Negative Energy Burst
Enhancement: Repair Manipulation III
Enhancement: Repair Manipulation IV
Enhancement: Warforged Power Attack II
Level 12 (Wizard)
Ability Raise: STR
Feat: (Selected) Greater Spell Focus: Necromancy
Spell (4): Stoneskin
Spell (4): Fire Shield
Enhancement: Wizard Intelligence II
Level 13 (Wizard)
Spell (5): Protection From Elements
Spell (5): Cloudkill
Enhancement: Repair Manipulation V
Level 14 (Wizard)
Feat: (Wizard Bonus) Mental Toughness
Spell (5): Break Enchantment
Spell (5): Teleport
Enhancement: Wizard Improved Quickening II
Enhancement: Warforged Power Attack III
Level 15 (Wizard)
Feat: (Selected) Extend Spell
Spell (6): Greater Heroism
Spell (6): Tenser's Transformation
Enhancement: Repair Manipulation VI
Level 16 (Wizard)
Ability Raise: STR
Spell (6): Reconstruct
Spell (6): Globe of Invulnerability
Enhancement: Wizard Pale Master II
Enhancement: Shroud of the Wraith
Level 17 (Barbarian)
Enhancement: Barbarian Power Rage I
Level 18 (Barbarian)
Feat: (Selected) Greater Two Handed Fighting
Enhancement: Barbarian Damage Boost II
Enhancement: Warforged Great Weapon Aptitude III
Level 19 (Barbarian)
Enhancement: Barbarian Power Attack II
Level 20 (Barbarian)
Ability Raise: STR
Enhancement: Barbarian Extra Rage II
Enhancement: Barbarian Power Rage II
Enhancement: Barbarian Frenzied Berserker I
Enhancement: Barbarian Constitution II
Cloudkill gives you an extra 20% Concealment and lots of other nice stuff, I thought this would be better than Firewall for your AoE. Should be around +50 damage per hit with a 2-handed weapon. Spellpoints should be around 1000 with added INT and SP items thrown in.