Here's a build I helped make for a guildie...enjoy
The basic idea is massive Ranged Damage.
~NimCode:Character Plan by DDO Character Planner Version 3.8.2 DDO Character Planner Home Page Searching For a Clue Level 20 True Neutral Elf Male (13 Rogue \ 6 Fighter \ 1 Wizard) Hit Points: 284 Spell Points: 285 BAB: 15\15\20\25\25 Fortitude: 12 Reflex: 15 Will: 7 Starting Feat/Enhancement Abilities Base Stats Modified Stats (34 Point) (Level 1) (Level 20) Strength 18 26 Dexterity 16 20 Constitution 14 16 Intelligence 10 12 Wisdom 8 8 Charisma 8 8 Tomes Used +2 Tome of Strength used at level 7 +2 Tome of Dexterity used at level 7 +2 Tome of Constitution used at level 7 +2 Tome of Intelligence used at level 7 Starting Feat/Enhancement Base Skills Modified Skills Skills (Level 1) (Level 20) Balance 3 6 Bluff -1 5 Concentration 2 8 Diplomacy -1 1 Disable Device 4 25 Haggle -1 0 Heal -1 0 Hide 7 29 Intimidate -1 1 Jump 4 19 Listen -1 2 Move Silently 7 35 Open Lock 7 10 Perform n/a n/a Repair 0 2 Search 4 27 Spot 3 25 Swim 4 11 Tumble 7 10 Use Magic Device 3 23 Level 1 (Rogue) Feat: (Past Life) Past Life: Rogue Feat: (Selected) Point Blank Shot Level 2 (Fighter) Feat: (Fighter Bonus) Rapid Shot Level 3 (Fighter) Feat: (Selected) Past Life: Sneak of Shadows Feat: (Fighter Bonus) Weapon Focus: Ranged Weapons Level 4 (Fighter) Level 5 (Fighter) Feat: (Fighter Bonus) Weapon Specialization: Ranged Weapons Level 6 (Fighter) Feat: (Selected) Precise Shot Level 7 (Fighter) Feat: (Fighter Bonus) Bow Strength Level 8 (Wizard) Feat: (Wizard Bonus) Mental Toughness Spell (1): Jump Spell (1): Nightshield Spell (1): Expeditious Retreat Level 9 (Rogue) Feat: (Selected) Manyshot Level 10 (Rogue) Level 11 (Rogue) Level 12 (Rogue) Feat: (Selected) Improved Critical: Ranged Weapons Level 13 (Rogue) Level 14 (Rogue) Level 15 (Rogue) Feat: (Selected) Improved Precise Shot Level 16 (Rogue) Level 17 (Rogue) Feat: (Rogue Bonus) Improved Evasion Level 18 (Rogue) Feat: (Selected) Toughness Level 19 (Rogue) Level 20 (Rogue) Feat: (Rogue Bonus) Crippling Strike Enhancement: Fighter Attack Boost I Enhancement: Fighter Attack Boost II Enhancement: Rogue Damage Boost I Enhancement: Rogue Damage Boost II Enhancement: Rogue Haste Boost I Enhancement: Rogue Haste Boost II Enhancement: Rogue Haste Boost III Enhancement: Rogue Haste Boost IV Enhancement: Elven Arcane Archer: Imbue Acid Arrows Enhancement: Elven Arcane Archer: Imbue Explosive Arrows Enhancement: Elven Arcane Archer: Imbue Force Arrows Enhancement: Elven Arcane Archer: Imbue Force Burst Arrows Enhancement: Elven Arcane Archer: Imbue Slaying Arrows Enhancement: Elven Arcane Archer: Imbue Terror Arrows Enhancement: Kensei Longbow Mastery I Enhancement: Fighter Critical Accuracy I Enhancement: Fighter Critical Accuracy II Enhancement: Fighter Kensei I Enhancement: Rogue Subtle Backstabbing I Enhancement: Racial Toughness I Enhancement: Racial Toughness II Enhancement: Elven Arcane Archer: Conjure +2 Arrows Enhancement: Elven Arcane Archer: Conjure +3 Arrows Enhancement: Elven Arcane Archer: Conjure +4 Arrows Enhancement: Elven Arcane Archer: Conjure +5 Arrows Enhancement: Elven Arcane Archer I Enhancement: Rogue Assassin I Enhancement: Rogue Assassin II Enhancement: Rogue Sneak Attack Accuracy I Enhancement: Rogue Sneak Attack Accuracy II Enhancement: Rogue Sneak Attack Accuracy III Enhancement: Rogue Sneak Attack Training I Enhancement: Rogue Sneak Attack Training II Enhancement: Rogue Sneak Attack Training III Enhancement: Rogue Sneak Attack Training IV Enhancement: Improved Hide I Enhancement: Improved Hide II Enhancement: Improved Move Silently I Enhancement: Improved Move Silently II Enhancement: Wizard Energy of the Scholar I Enhancement: Rogue Dexterity I Enhancement: Fighter Strength I Enhancement: Fighter Strength II Enhancement: Fighter Toughness I Enhancement: Fighter Toughness II