Images:

gw2-accursed-chains-focus-1gw2-accursed-chains-focus-2gw2-accursed-chains-focus-3

Set:

Slot Item Name Trading Post Preview Code
Focus http://db.dulfy.net/item/31046 GW2 TP [&AgFGeQAA]

Where to Obtain:

Mystic Forge: 1 Eldritch Scroll, 30 Mystic Coin, 50 Orichalcum Ingot, 250 Steel Ingot