The Eye of Wael procc Obfuscation gives you a 10% chance to become Invisible for 8s on scoring a Critical Hit. Scordeo's Trophy has an enchant that increases critical damage by 25%.
This a long with the assassin passive Assassinate, which gives you +4 Penetration, +25 Accuracy and +50% Critical Hit Damage with attacks from stealth, makes this build a very strong ranged single target damage dealer. Therefore it is vital to stack as much crit chance as possible to make the most out of the synergy between these passives. In addition Ajamuut's Stalking Cloak makes your stealth attacks stun the target. The build is a very squishy glass cannon build with one of the highest burst single target damage in the game.

• Might 17
  
• Constitution 5
  
• Dexterity 18
  
• Perception 21
  
• Intellect 12
  
• Resolve 4

Hit to crit conversion passive

• Level 1: Crippling Strike
  
• Level 2: Escape
  
• Level 3: Two Weapon Style/Dirty Fighting
  
• Level 4: Defensive Roll
  
• Level 5: Finishing Blow/Strike the Bell
  
• Level 6: Debilitating Strike
  
• Level 7: Shadowing Beyond/Snake's Reflex
  
• Level 8: Adept Evasion
  
• Level 9: Devestating Blow/Deep Wounds
  
• Level 10: Pierce the Bell
  
• Level 11: Uncanny Luck/Improved Critical
  
• Level 12: Spell Resistance
  
• Level 13: Deathblows/Potent Empower
  
• Level 14: Accurate Empower
  
• Level 15: Penetrating Empower
  
• Level 16: Gambit/Enduring Shadows
  
• Level 17: Great Soul
  
• Level 18: Lasting Empower
  
• Level 19: Vanishing Strike/Murderous Intent
  
• Level 20: Wall of Flashing Steel

• Active skills: Mix Athletics/Stealth
  
• Passive skills: No inherent build synergy so pick what you want

• Scepter
  
• Pistol
  
• Then choose other 1 handers. If you want to be able to swap to melee you can drop an ability to pick up Backstab.

[*High single target damage
[*Stun
[*Burst
[*Strong item synergy
[*Escapes

• Squishy
  
• Scepter passive deals damage to self

Maxing Crit chance and crit damage to utilize The Eye of Wael proc Obfuscation, Scordeo's Trophy crit dmg passive and Ajamuut's Stalking Cloak proc Bushwack for stealth attacks.

• Main hand - Scordeo's Trophy [pillarsofeternity.gamepedia.com]
  - Obliterating Crit: 25% crit damage. Opening Barrage: Scoring Hits with this weapon grants a stacking -5% recovery time for 30 sec
  
• Off hand - The Eye of Wael[pillarsofeternity.gamepedia.com]
  
  Obfuscation: 10% chance to become Invisible for 8s on scoring Critical Hit. Shrouded Strike: 10% chance to cast random Affliction on target on scoring Crit.
  
  The reason you want Scordeo's Trophy in the main hand is that your weapon reloads automatically without recovery time when using an ability so you can do one autoattack with Scordeo's Trophy then an ability to trigger both weapons.
  
  

• Helm - Acina's Tricorn [pillarsofeternity.gamepedia.com]; Shootist: +5 Ranged Accuracy, -20% Reload Time
  
• Neck - Precognition [pillarsofeternity.gamepedia.com]; Heads, I Win: -75% Crit Damage taken Tails, You Lose: +25% Crit Damage given
  
• Chest - Miscreant's Leathers [pillarsofeternity.gamepedia.com]; Deft Motion: -10% Recovery time, +8 Reflex.
  
• Ring 1 - Ring of the Marksman [pillarsofeternity.gamepedia.com]; Marksmanship: +8 Ranged Accuracy with Ranged weapons, +1 Penetration with Ranged weapons
  
• Ring 2 - Chameleon's Touch [pillarsofeternity.gamepedia.com]; Versatile: Gives +1 to an Attribute (Dexterity for rogues) and a Skill determined by the User's class.
  
• Boots - Pathfinder's Boots [pillarsofeternity.gamepedia.com]; Light Step: +5 Reflex. Unhindered: +1 Dexterity, +1 Athletics.
  
• Belt - Upright Captain's Belt [pillarsofeternity.gamepedia.com]; Buttressed: Immune to Push and Pull effects. Hold Fast: Grants Hold Fast: Grants Concentration on combat start
  
• Gloves - Aegor's Swift Touch [pillarsofeternity.gamepedia.com]; Bullet Catch: While above 50% Health, 5% chance incoming Ranged weapon attacks inflict 0% Damage. Rapidity: +1 Dexterity, +5% Action Speed with weapons
  
• Cloak - Ajamuut's Stalking Cloak [pillarsofeternity.gamepedia.com]; Tracker: +1 Perception, +2 Stealth Bushwack: +15% Damage to weapon attacks made from stealth, +10 Accuracy to weapon attacks made from stealth, Attacks made from stealth Stun the target
  
• Pet - Nalvi (Dog): Reduce recover Penalty for armor (varies by type) - Party Wide

• Deadeye: +5 Accuracy, 15% chance to Interrupt on scoring hit for 180 sec
  
• Mouth Char: -5% damage taken, +15% damage dealt for 180 sec
  
• Potion of Perfect Aim: % Missses to Grazes / Grazes to Hits / Hits to Crits conversion
  
• Potion of Deftness: +5 Accuracy, +15% Action Speed

• Destructuve channeling: 20% of damage dealth is applied to self as Raw Damage, 20% Damage and +2 Pen with Scepter weapons.
  
• Ajamuut's Stalking Cloak; Bushwack: +15% Damage to weapon attacks made from stealth, +10 Accuracy to weapon attacks made from stealth, Attacks made from stealth Stun the target
  
• Assassinate: +4 Penetration, +25 Accuracy and +50% Critical Hit Damage with attacks from stealth
  
• The Eye of Wael; Obfuscation: 10% chance to become Invisible for 8s on scoring Critical Hit
  
• Devastating Blow: +50% Damage, +200% Damage by percentage of target's Health lost
  
• Pierce the Bell: One-Handed gains 9 Raw Damage per 3.0 sec for 9.0 sec, Two-Handed gains Staggered for 9.0 sec, Ranged gains +3 Penetration and +20% Bonus Damage
  
• Enduring Shadows: Untargetable, Invisible , +50 Deflection for 10.0 sec + Swift Inspiration
  
• Deathblows: +50% Weapon Damage to target that has atleast 2 afflictions or above.
  
• Sneak attack: +% scaling damage with power levels for weapons against enemy with atleast 1 affliction
  
• Vanishing Strike: Strike an enemy and then immediately vanish into the shadows, granting invisibility for a brief time.

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