• Torment Difficulty:
Unique items can drop in Torment difficulty, with higher difficulties increasing your odds.
• Boss Hoards:
Flickerstep is listed as dropping from Echo of Duriel, Echo of Andariel, and Harbinger of Hatred boss hoards.
• Open World Drops:
Flickerstep can randomly drop from enemies, chests, and breakable objects.
• Helltide Chests:
Flickerstep can drop from chests during Helltide Events.
• Boss Farming:
Repeated Echo of Duriel, Echo of Andariel, and Harbinger of Hatred runs are the best farming method if you specifically want Flickerstep.