Images:

gw2-the-mad-moongw2-the-mad-moon-2gw2-the-mad-moon-3

Set:

Slot Item Name Trading Post Preview Code
Shield http://db.dulfy.net/item/36056 GW2 TP [&AgHYjAAA]

Where to Obtain:

Halloween can also craft in Mystic Forge
1 Gift of the Moon, 1 Eldritch Scroll, 100 Mystic Coin, 20 Superior Sigil of the Night

Particle Effects:

Glow and misty effect around the edge