The Hallowed Wand - Wisp is one of the random drops from during the Hallow's End event. A Handful of Treats can be obtained by looting the Candy Buckets during the or in a after freeing a town from the Shade of the Horseman.
Related achievements Edit
requires that you be transformed by each of the Hallowed Wands, excluding the random one.
Feign Death Edit
It is possible for Hunters in Wisp form to use Feign Death in Wisp form to cause their wisp model to disappear in a 'pop'. Luckily, while in wisp form, it is not possible to attack without taking off the buff.