Elven shadow monster?

[krud]

was thinking of an elf variation of the monster using the displacement dragonmarks. I got two versions planned - a dex/finesse version with rapiers, and a str based version with scimitars. Not sure which I prefer, but am leaning dex atm. Already having a stockpile of rapiers doesn't hurt either. Same starting stats, but the str based version puts all level ups in str. It would end up with +3 damage, -3AC and -3 reflex save vs the finesse version. Probably would take otwf in place of finesse if I went str route. The dex based version can get useful end game AC with minimal grinding. If I really want to focus on AC I can start with 14str and 18dex. All in all it's about a 5-10% drop in dps for a gain of 3 or 4 AC. which way to go? I'm positive the end-game whack-a-brick-wall-type-mob-boss-with-auto-attack players will say 'go for strength', but without a good way to self heal I'd prefer a good defense as well. It's not like he'll have gimp dps if I go for dex. Has anyone figured out the to-hit of trash mobs, and bosses in current high end content?

And before anyone says "just get shroud clickies for displacement" I'll say NO, I don't want to grind vale quests just for some clickies. I can barely tolerate grinding out the main items/weapons I need. Plus, I already got my paladin if I really want to play a clickiefest. And no, I don't want to make a halfling either

Character Plan by DDO Character Planner Version 3.10
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Incogneato2 
Level 20 Lawful Good Elf Male
(12 Fighter \ 2 Monk \ 6 Ranger) 
Hit Points: 351
Spell Points: 70 
BAB: 19\19\24\29\29
Fortitude: 19
Reflex: 22
Will: 14
   Starting          Feat/Enhancement
Abilities        Base Stats          Modified Stats
(32 Point)       (Level 1)             (Level 20)
Strength             16                    22
Dexterity            16                    28
Constitution         14                    16
Intelligence          8                     8
Wisdom               14                    16
Charisma              8                     8
Tomes Used
+2 Tome of Strength used at level 16
+2 Tome of Dexterity used at level 16
+2 Tome of Constitution used at level 16
+2 Tome of Wisdom used at level 16
+3 Tome of Strength used at level 20
+3 Tome of Dexterity used at level 20
 
Level 1 (Monk)
Feat: (Monk Bonus) Dodge
Feat: (Selected) Least Dragonmark of Shadow
 
Level 2 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Undead
 
Level 3 (Ranger)
Feat: (Selected) Weapon Finesse
 
Level 4 (Ranger)
 
Level 5 (Ranger)
 
Level 6 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Evil Outsider
Feat: (Selected) Lesser Dragonmark of Shadow
 
Level 7 (Ranger)
 
Level 8 (Fighter)
Feat: (Fighter Bonus) Mobility
 
Level 9 (Fighter)
Feat: (Selected) Extend Spell
Feat: (Fighter Bonus) Spring Attack
 
Level 10 (Fighter)
 
Level 11 (Fighter)
Feat: (Fighter Bonus) Improved Critical: Slashing Weapons
 
Level 12 (Fighter)
Feat: (Selected) Weapon Focus: Slashing Weapons
 
Level 13 (Fighter)
Feat: (Fighter Bonus) Weapon Specialization: Slashing Weapons
 
Level 14 (Monk)
Feat: (Monk Bonus) Toughness
 
Level 15 (Fighter)
Feat: (Selected) Power Attack
 
Level 16 (Fighter)
Feat: (Fighter Bonus) Greater Two Weapon Fighting
 
Level 17 (Fighter)
 
Level 18 (Fighter)
Feat: (Selected) Iron Will
Feat: (Fighter Bonus) Two Weapon Defense
 
Level 19 (Fighter)
 
Level 20 (Fighter)
Feat: (Fighter Bonus) Greater Weapon Specialization: Slashing Weapons
Enhancement: Fighter Attack Boost I
Enhancement: Fighter Attack Boost II
Enhancement: Fighter Haste Boost I
Enhancement: Fighter Haste Boost II
Enhancement: Elven Dexterity I
Enhancement: Elven Dexterity II
Enhancement: Elven Enchantment Resistance I
Enhancement: Valenar Elf Melee Damage I
Enhancement: Valenar Elf Melee Damage II
Enhancement: Extra Dragonmark Use I
Enhancement: Extra Dragonmark Use II
Enhancement: Extra Dragonmark Use III
Enhancement: Extra Dragonmark Use IV
Enhancement: Kensei Scimitar Mastery I
Enhancement: Kensei Scimitar Mastery II
Enhancement: Fighter Critical Accuracy I
Enhancement: Fighter Critical Accuracy II
Enhancement: Fighter Kensei I
Enhancement: Fighter Kensei II
Enhancement: Fighter Scimitar Specialization I
Enhancement: Way of the Patient Tortiose I
Enhancement: Racial Toughness I
Enhancement: Racial Toughness II
Enhancement: Ranger Favored Damage I
Enhancement: Ranger Favored Damage II
Enhancement: Ranger Favored Defense I
Enhancement: Ranger Tempest I
Enhancement: Ranger Dexterity I
Enhancement: Ranger Dexterity II
Enhancement: Fighter Strength I
Enhancement: Fighter Strength II
Enhancement: Fighter Strength III
Enhancement: Fighter Toughness I
Enhancement: Fighter Toughness II
Enhancement: Fighter Toughness III
Enhancement: Fighter Toughness IV