Prototype Vibroblade
Found: On the body of a red Sith Trooper just before you reach the escape pod of the Endar Spire.
Before upgrades: Physical: 1-10, +1 Physical
After upgrades: Physical: 1-10, +4 Physical, +3 Attack
Mission's Vibroblade
Found: After Mission joins your party, this item is added to your inventory.
Before upgrades: Physical: 1-10, +1 Physical
After upgrades: Physical: 1-10, +1 Physical, +1 Energy, +2 Attack
Sanasiki's Blade
Found: Bought from Aratech merchants on Dantooine.
Before upgrades: Physical: 3-12, +3 vs. Droid, +2 Attack
After upgrades: Physical: 3-12, +3 vs. Droid, +1-6 Energy, +4 Attack, Keen (double critical range)
Bacca's Ceremonial Blade
Found: Obtained from Chuundar or Freyyr on Kashyyyk.
Before upgrades: Physical: 4-14, +4 Energy, +2 Attack
After upgrades: Physical: 6-16, +2-12 Bludgeoning damage vs. droids, +4 Energy, +4 Attack, +2-12 damage on critical hits
Yusani's Brand
Found: Bought from spaceport merchant on Tatooine (8,000 credits).
Before upgrades: Physical: 4-18, +5 vs. droids, +2 Attack
After upgrades: Physical: 4-18, +6-9 vs. droids, +3 Fire, +3 Attack, 50% chance of 12 second stun on a successful hit