Images:

gw2-remnant-of-ascalon-hammer-1gw2-remnant-of-ascalon-hammer-21gw2-remnant-of-ascalon-hammer1

Set:

Slot Item Name Trading Post Preview Code
Hammer http://db.dulfy.net/item/27649 GW2 TP [&AgEBbAAA]

Where to Obtain:

Mystic Forge: Random drop by combining 4 Level 75+ rare/exotic hammers