Chosen by the Gods
Hat of Disguise
Level 8 head slot item
A Hat of Disguise is usually a level 10 item, but the usual At-Will power has been changed to a Daily, thus explaining the decrease in level rating.
Found on the head of one of the dead gnome illusionists after the defeat of the Winter King, Cora (then known as Eldan), took the hat with many ideas of how such a wonderful item might be used.