Images:

gw2-monsoon-staffgw2-monsoon-staff-2gw2-monsoon-staff-3

Set:

Slot Item Name Trading Post Preview Code
Staff http://db.dulfy.net/item/44992 GW2 TP [&AgHArwAA]

Where to Obtain:

Champion loot bags: Fallen Adventurer’s Backpack, Elaborate Ritualist Bag, Gilded Strongbox

Particle Effects:

Small water animation near the tip