Images:

gw2-mystic-artifact-focusgw2-mystic-artifact-focus-2gw2-mystic-artifact-focus-3

Set:

Slot Item Name Trading Post Preview Code
Focus http://db.dulfy.net/item/31083 GW2 TP [&AgFreQAA]

Where to Obtain:

Mystic Forge: 30 Mystic Coin + 1 Eldritch Scroll + 5 Ancient Focus Core + 5 Ancient Focus Casing

Particle Effects:

White sparks around the tip of the key.