Images:

gw2-scientific-greatswordgw2-scientific-greatsword-2gw2-scientific-greatsword-3

Set:

Slot Item Name Trading Post Preview Code
Greatsword http://db.dulfy.net/item/69799 GW2 TP [&AgGnEAEA]

Where to Obtain:

Purchased from Black Lion Weapon Specialist for 3 tickets each.

Particle Effects:

Drips acid, the yellow orb near the handle rotates

Unique Sounds:

Unique draw sound

https://www.youtube.com/watch?v=j59BN_GgU1w?t=43s