Dual Pistol/Time is on of my favorite blaster combos. Fast playing, reasonably survivable, with an emphasis on pbaoe and melee.
Here's the build I've been running for a while.
Hero Plan by Mids' Reborn : Hero Designer 2.6.0.7 https://github.com/ImaginaryDevelopment/imaginary-hero-designer
Level 50 Magic Blaster
Primary Power Set: Dual Pistols
Secondary Power Set: Temporal Manipulation
Power Pool: Fighting
Power Pool: Speed
Power Pool: Leaping
Power Pool: Leadership
Ancillary Pool: Mu Mastery
Hero Profile:
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Level 1: Dual Wield
(A) Superior Defiant Barrage - Accuracy/Damage
(7) Superior Defiant Barrage - Damage/RechargeTime
(13) Superior Defiant Barrage - Accuracy/Damage/RechargeTime
(15) Superior Defiant Barrage - Accuracy/Damage/Endurance/RechargeTime
(15) Superior Defiant Barrage - Accuracy/Damage/Endurance
(17) Superior Defiant Barrage - RechargeTime/+Status
Level 1: Time Wall
(A) Accuracy IO
Level 2: Empty Clips
(A) Superior Blaster's Wrath - Accuracy/Damage
(3) Superior Blaster's Wrath - Damage/Recharge
(3) Superior Blaster's Wrath - Accuracy/Damage/Recharge
(5) Superior Blaster's Wrath - Accuracy/Damage/Endurance
(5) Superior Blaster's Wrath - Accuracy/Damage/Endurance/Recharge
(7) Superior Blaster's Wrath - Recharge/Chance for Fire Damage
Level 4: Aging Touch
(A) Mako's Bite - Accuracy/Damage
(25) Mako's Bite - Accuracy/Damage/Endurance/Recharge
(27) Mako's Bite - Chance of Damage(Lethal)
(43) Mako's Bite - Damage/Endurance
(43) Mako's Bite - Damage/Recharge
(46) Mako's Bite - Accuracy/Endurance/Recharge
Level 6: Swap Ammo
Level 8: Bullet Rain
(A) Overwhelming Force - Accuracy/Damage
(9) Overwhelming Force - Endurance/Recharge
(9) Overwhelming Force - Accuracy/Damage/Endurance
(11) Overwhelming Force - Damage/Endurance/Recharge
(11) Overwhelming Force - Accuracy/Damage/Endurance/Recharge
(13) Overwhelming Force - Damage/Chance for Knockdown/Knockback to Knockdown
Level 10: Chronos
(A) Gaussian's Synchronized Fire-Control - To Hit Buff
(17) Gaussian's Synchronized Fire-Control - To Hit Buff/Recharge
(19) Gaussian's Synchronized Fire-Control - To Hit Buff/Recharge/Endurance
(19) Gaussian's Synchronized Fire-Control - Recharge/Endurance
(21) Gaussian's Synchronized Fire-Control - To Hit Buff/Endurance
(21) Gaussian's Synchronized Fire-Control - Chance for Build Up
Level 12: Boxing
(A) Empty
Level 14: Tough
(A) Unbreakable Guard - Resistance
(23) Unbreakable Guard - Resistance/Endurance
(23) Steadfast Protection - Resistance/+Def 3%
(25) Unbreakable Guard - +Max HP
(43) Unbreakable Guard - Resistance/Endurance/RechargeTime
Level 16: End of Time
(A) Obliteration - Damage
(27) Obliteration - Accuracy/Recharge
(29) Obliteration - Damage/Recharge
(29) Obliteration - Accuracy/Damage/Recharge
(31) Obliteration - Accuracy/Damage/Endurance/Recharge
(31) Obliteration - Chance for Smashing Damage
Level 18: Executioner's Shot
(A) Thunderstrike - Accuracy/Damage
(31) Thunderstrike - Damage/Endurance
(33) Thunderstrike - Damage/Recharge
(33) Thunderstrike - Accuracy/Damage/Recharge
(33) Thunderstrike - Accuracy/Damage/Endurance
(34) Thunderstrike - Damage/Endurance/Recharge
Level 20: Temporal Healing
(A) Numina's Convalesence - +Regeneration/+Recovery
(46) Endurance Modification IO
(50) Endurance Modification IO
Level 22: Weave
(A) Luck of the Gambler - Defense/Endurance
(34) Luck of the Gambler - Defense
(34) Luck of the Gambler - Defense/Increased Global Recharge Speed
(36) Reactive Defenses - Scaling Resist Damage
(40) Shield Wall - +Res (Teleportation), +5% Res (All)
Level 24: Hasten
(A) Recharge Reduction IO
(36) Recharge Reduction IO
Level 26: Combat Jumping
(A) Luck of the Gambler - Defense/Increased Global Recharge Speed
Level 28: Future Pain
(A) Mako's Bite - Accuracy/Damage
(36) Mako's Bite - Damage/Endurance
(37) Mako's Bite - Damage/Recharge
(37) Mako's Bite - Accuracy/Endurance/Recharge
(37) Mako's Bite - Accuracy/Damage/Endurance/Recharge
(39) Mako's Bite - Chance of Damage(Lethal)
Level 30: Maneuvers
(A) Luck of the Gambler - Defense/Endurance
(39) Luck of the Gambler - Defense
(39) Luck of the Gambler - Defense/Increased Global Recharge Speed
Level 32: Hail of Bullets
(A) Obliteration - Damage
(40) Obliteration - Accuracy/Recharge
(40) Obliteration - Damage/Recharge
(42) Obliteration - Accuracy/Damage/Recharge
(42) Obliteration - Accuracy/Damage/Endurance/Recharge
(42) Obliteration - Chance for Smashing Damage
Level 35: Charged Armor
(A) Aegis - Resistance/Endurance
(45) Aegis - Resistance/Recharge
(45) Aegis - Resistance/Endurance/Recharge
(45) Aegis - Resistance
(46) Aegis - Psionic/Status Resistance
Level 38: Time Lord
(A) Gladiator's Armor - TP Protection +3% Def (All)
Level 41: Super Speed
(A) Celerity - +Stealth
Level 44: Time Stop
(A) Lockdown - Accuracy/Hold
(48) Lockdown - Accuracy/Recharge
(48) Lockdown - Recharge/Hold
(48) Lockdown - Endurance/Recharge/Hold
(50) Lockdown - Accuracy/Endurance/Recharge/Hold
(50) Lockdown - Chance for +2 Mag Hold
Level 47: Assault
(A) Endurance Reduction IO
Level 49: Vengeance
(A) Luck of the Gambler - Defense/Increased Global Recharge Speed
Level 1: Brawl
(A) Empty
Level 1: Defiance
Level 1: Prestige Power Dash
(A) Empty
Level 1: Prestige Power Slide
(A) Empty
Level 1: Prestige Power Quick
(A) Empty
Level 1: Prestige Power Rush
(A) Empty
Level 1: Prestige Power Surge
(A) Empty
Level 1: Sprint
(A) Empty
Level 2: Rest
(A) Empty
Level 4: Ninja Run
Level 2: Swift
(A) Empty
Level 2: Health
(A) Miracle - +Recovery
Level 2: Hurdle
(A) Empty
Level 2: Stamina
(A) Performance Shifter - Chance for +End
Level 6: Chemical Ammunition
Level 6: Cryo Ammunition
Level 6: Incendiary Ammunition
Level 1: Quick Form