Images:

gw2-scientific-staffgw2-scientific-staff-2gw2-scientific-staff-3

Set:

Slot Item Name Trading Post Preview Code
Staff http://db.dulfy.net/item/69795 GW2 TP [&AgGjEAEA]

Where to Obtain:

Purchased from Black Lion Weapon Specialist for 3 tickets each.

Particle Effects:

Drips acid, the yellow orb at the top spins

Unique Sounds:

Unique Draw Sound

https://www.youtube.com/watch?v=j59BN_GgU1w?t=3m9s