Images:

gw2-naga-fang-greatswordgw2-naga-fang-greatsword-2gw2-naga-fang-greatsword-3

Set:

Slot Item Name Trading Post Preview Code
Greatsword http://db.dulfy.net/item/27321 GW2 TP [&AgG5agAA]

Where to Obtain:

Obtained randomly via the Mystic Forge by combining 4 L75+ rares/exotics or from mobs.